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TRAIN-WAY > RL MISELENEOUS SCI 1 > Flashcards

RL MISELENEOUS SCI 1 Flashcards

1
Q

●Ordinary table salt is sodium chloride. What isbaking soda?

A

Sodium bicarbonate

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2
Q

●Pollination is best defined as:

A

transfer of pollenfrom anther to stigma

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3
Q

●Plants receive their nutrients mainly from:

A

Soil

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4
Q

●Movement of cell against concentration gradient iscalled:

A

Active trasnport

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5
Q

●Photosynthesis generally takes place in which parts ofthe plant?

A

Leaf and other chloroplast bearingparts

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6
Q

●Most fish do not sink in water because of the presenceof:

A

swim bladder and air bladder

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7
Q

●Plants synthesiss protein from:

A

Aminod acids

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8
Q

●Plants absorb dissolved nitrates from soil and convertthem into:

A

Free Nitrogen

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9
Q

●Plants absorb most part of water needed by themthrough their:

A

Root hairs

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10
Q

●The combined action of photorespiration, photolysisand light and oxygen induced breakdown iscalled:

A

Photo-oxidation

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11
Q

●Process of cell division can take place by:

A

Mitosis

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12
Q

●Most highly intelligent mammals are:

A

Dolphins

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13
Q

●Plant development is influenced by:

A

quality,quantity and duration of light

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14
Q

●Prokaryotic cells lack:

A

nucleolus, nuclearmembrane and membrane bound by organelles

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15
Q

●Photosynthesis takes place faster in:

A

White Light

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16
Q

●Nucleus, the genetic material containing roundedbody in each cell, was first discovered in 1831 by:

A

Robert Brown

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17
Q

●Primary phloem develops from:

A

provascular tissue

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18
Q

●Other than spreading malaria, anopheles mosquitoesare also vectors of:

A

filariasis

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19
Q

●Plants that grow in saline water are called:

A

Halophytes

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20
Q

●Placenta is the structure formed:

A

by the union offoetal and uterine tissue

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21
Q

●Plants hormone that induces cell division is:

A

Kinins

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22
Q

●Neurospora is used as genetic material because:

A

ithas short life cycle of 10 days

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23
Q

●Phloem is a tissue found in:

A

Plants

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24
Q

●Out of proteins, lipids and carbohydrates present in acell membrane, what is true?

A

Carbohydratesare minimum

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25
Q

●Potato is a modified form (outgrowth) of:

A

Stem

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26
Q

●Prothrombin which helps in clotting of blood isreleased by:

A

Blood platelets

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27
Q

●Most of the red, blue and purple colours of plants aredue to a pigment called:

A

Anthocyanin

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28
Q

●Plants growing on sand are called as:

A

psammophytes

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29
Q

●Our skin, when exposed to excess sunlight, becomesdark. This is because our skin pigments called:

A

Melanin

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30
Q

●Ramapithecus and Cro-Magnon man are considered:

A

Ancestors of modern man

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31
Q

●Normal adult human male has:

A

14 gram ofhaemoglobin/100 gram of blood

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32
Q

●Plants wilt due to excess of:

A

Transpiration

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33
Q

Monotremes are unique mammals because they:

A

layeggs

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34
Q

●Poison glands of snakes are homologous to:

A

salivary glands of vertebrates

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35
Q

●Radical vascular bundles are those in which:

A

xylemand phloem occur on the different radii

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36
Q

●Plant bends towards the source of light on account ofthe movement of curvature known as:

A

phototropism

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37
Q

●Plants have ____, while animals lack it.

A

Cellulose

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38
Q

●Photosynthesis is a process which can be describedas:

A

reductive, endergonic and anabolic

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39
Q

●Plants developing in dry conditions are:

A

Xerophytes

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40
Q

●Pigmentation of skin is due to:

A

Melanocytes

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41
Q

●Norepinephrine increases:

A

Blood pressure

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42
Q

●Monocot root differs from dicot root in having:

A

well developed pith

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43
Q

●Radioactivity is a phenomenon of the spontaneousemission of:

A

Protons, electrons and gamma rays

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44
Q

●Organic Substances which, in very small amounts,control growth and development called:

A

Hormones

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45
Q

●Our major foods, fibres, spices, fruits and beveragecrops are:

A

flowering plants

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46
Q

●Movements due to light are shown by:

A

floweringplants

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47
Q

●Outer covering of virus made up of protein is:

A

Capsid

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48
Q

●Radish is a:

A

modified root

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49
Q

●Most common disease of poultry in India is:

A

Ranikhet disease

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50
Q

●Most abundant tissues of our body are:

A

muscular

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51
Q

●Mumps is a disease caused by:

A

Virus

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52
Q

●Rain water helps to increase the ____ to some extent.

A

Calcium contents

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53
Q

●Number of chromosomes in Down’s syndrome is:

A

47

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54
Q

●Plants are killed in winter by frost:

A

because ofdesiccation and mechanical damage to the tissues

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55
Q

●Pulses are a good source of:

A

Protein

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56
Q

●Oxygen in our blood is transported by a proteinnamed:

A

Haemoglobin

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57
Q

●Nymph is the name of young one of:

A

cockroach

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58
Q

●Plants that grow under average temperature andmoisture are called:

A

Mesophytes

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59
Q

●Oxyreductases, transferases, hydrolases, lyases,isomerases and ligases are all classes of:

A

Enzymes

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60
Q

●Mutation is:

A

a change that is inherited

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61
Q

●Pollination by wind is called:

A

anemophily

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62
Q

●Pollen grains in plants are produced in:

A

Flower

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63
Q

●Ptyalin is an enzyme produced in the:

A

salivaryglands

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64
Q

●Mycobacterium leprae causes leprosy,Corynebacterium diphtheria causes diphtheriaand Vibrio comma causes:

A

Cholera

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65
Q

●The one which is present in all living things is:

A

DNA or RNA

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66
Q

●The mechanism of stomatal movement is related tothe branch of Biology called:

A

Physiology

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67
Q

●Maximum number of species of living things on earthare:

A

Insects

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68
Q

●Variety among amino acids is produced due to:

A

RGroup

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69
Q

●An enzyme which converts a dipeptide into separateamino acids is an example of:

A

Hydrolase

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70
Q

●Cellular digestion is associated with which organelle:

A

Lysosomes

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71
Q

●Membranes of the grane are sites where:

A

Sunlightis trapped

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72
Q

●The simplest of oxygen producting photosyntheticorganisms are:

A

Cyanobacteria

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73
Q

●Protein coasts of viruses are synthesized in:

A

LyticCycle

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74
Q

●Mycoplasmas have been included in bacteriabecause:

A

Lack membrane bounded organelles

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75
Q

●Yeasts reproduce asexually by forming:

A

Buds

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76
Q

●The one which can tolerate highest external osmoticpressure:

A

Fungi

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77
Q

●Locomotory structures are not found in which of thefollowing group:

A

Apicomplexans

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78
Q

●The cell wall of oomycetes is chiefly composed of:

A

Cellulose

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79
Q

●One celled green ptotists are included in:

A

Algae

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80
Q

●Pick the odd one out:

A

Psilotum

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81
Q

●The one which is incorrect pair:

A

Dichotomous -Vernation

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82
Q

●Double fertilization occurs in:

A

Angiosperm

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83
Q

●Amphoixus is a:

A

Chordate, Protochordate andLower chordate

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84
Q

●Adult birds normally possess only one functional:

A

Ovary

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85
Q

●Following possess bilateral symmetry as larva andradial symmetry as adult:

A

Echinodermata

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86
Q

●How many moles of carbon dioxide are produced bycomplete oxidation of one mole of puruvic acid?

A

3

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87
Q

●The food of hydra consists of:

A

Small crustaceans

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88
Q

●Hunger pangs usually begin ______ after the previousmeal.

A

12-24 hours

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89
Q

●If a plasmolysed plant cell is placed in water the cellwill be:

A

deplasmolysed

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90
Q

●The major constituent of blood plasma is:

A

Water

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91
Q

●Kangaroo rat most probably would be found in:

A

Desert

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92
Q

●The greatest diversity of animals in the lake is foundin which one of the following zones?

A

Littoralzone

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93
Q

●What is the characteristic feature of consumers?

A

Heterotroph

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94
Q

●What percentage of light reaching the earth is used inphotosynthesis?

A

1%

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95
Q

●Competition between species will be greatest if theyattempt to occupy the same:

A

Niche

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96
Q

●In most ecosystems the greatest amount of energyflows through the:

A

Herbivores

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97
Q

●Animals with greatest number of similarities aregrouped together in a/an:

A

Genus

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98
Q

●The structure which has been formed or modifiedfrom gill pouches in humans is:

A

Eustachiantube

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99
Q

●According to Lamarch evolution occurred as theresult of:

A

Inheritance of acquired characters

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100
Q

●The discease in which transmembrane carrier for thechloride ion is not produced is:

A

Cystic fibrosis

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101
Q

●The one which can break open a plasmid ring is:

A

Ligase enzyme

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102
Q

●A genome is:

A

Full set of genes of an individual

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103
Q

●Genes will not be found in gene pairs in the:

A

Spermcells of frog

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104
Q

●In humans the number of tetrads formed during mitosis is:

A

0

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105
Q

●The sequence of 3 bases on tRNA which iscomplementary to condon of mRNA is called:

A

Anticodon

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106
Q

●The basic structural unit of a chromosome is:

A

Nuceleosome

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107
Q

●The first stage of development in which a cavityappears is the:

A

Balastula

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108
Q

●Exposure to low temperature stimulates plants toflower. This is called:

A

Vernalization

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109
Q

●The cells present in testes and secrete testosteroneare:

A

Interstitial cells

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110
Q

●The type of learning in which there is loss or decreasein response to repeated stimuli:

A

Habituation

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111
Q

●The one which causes contraction of wall of theuterus during and after birth:

A

Oxytocin

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112
Q

●The one that stores calcium:

A

Sarcoplasmicreticulum

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113
Q

●Sebum produced from sebaceous glands in a mammalhelps in:

A

Protection against micro organisms

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114
Q

●The Locomotory organ of ‘Amoeba’ is:

A

Pseudopodia

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115
Q

●The number of chromosomes present in normalhuman being are:

A

46

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116
Q

●An instrument for measuring blood pressure iscalled:

A

Sphygmomanometer

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117
Q

“●The term ‘Rh factor”” refers to:”

A

Rhesus Factor

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118
Q

●The discoverer of penicillin was:

A

AlexanderFleming

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119
Q

●Blood groups were discovered by:

A

Landsteiner

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120
Q

●The animal which can tolerate more summer heat is:

A

Goat

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121
Q

●The tissue in man where no cell division occurs afterbirth is:

A

Nerves

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122
Q

●DNA fingerprinting is used to identify the:

A

Parents, Rapist and Thieves

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123
Q

●The normal cholesterol level in human blood is:

A

180-200 mg%

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124
Q

●In a food chain, the solar energy utilized by plants isonly:

A

0.1 per cent

125
Q

In coriander, the useful parts are:

A

Leaves & driedfruits

126
Q

●Which plant is called ‘Herbal Indian Doctor’?

A

Amla

127
Q

●The pH of human blood is:

A

7.4

128
Q

●Which part becomes modified as the tusk ofelephant?

A

Second Incisor

129
Q

●The noble gas used for the treatment of cancer is:

A

Radon

130
Q

●Bark of which of the following trees is used as acondiment?

A

Cinnamon

131
Q

●Saliva helps in the digestion of:

A

Starch

132
Q

●Iodoform is used as an:

A

antiseptic

133
Q

●The optimum dissolved oxygen level (in mg/litre)required for survival of aquatic organisms is:

A

4-6

134
Q

●An example of false fruit is:

A

apple

135
Q

●Normal fasting blood sugar level per 100 ml of bloodin man is:

A

80-100 mg

136
Q

●The vector of disease sleeping sickness is:

A

Tse-tsefly

137
Q

●Cod is a variety of:

A

Fish

138
Q

●A large number of identical plants can be obtained ina short span of time through a large number ofseeds of:

A

Tissue culture technique

139
Q

●The smallest flowering plant is:

A

Wolffia

140
Q

●The tallest and thickest type of grass is:

A

Bamboo

141
Q

●The process of preventing the birds from flying iscalled:

A

Brailing

142
Q

●Veins seen in the leaves serve the function of:

A

Conduction

143
Q

●The edible part of Cabbage is:

A

vegetative bud

144
Q

●Goitre is caused by the deficiency of:

A

Iodine

145
Q

●The total number of biosphere reserves present inIndia is:

A

15

146
Q

●The normal body temperature of human beings is:

A

98.40 F

147
Q

●Columba livia is the scientific name of:

A

Pigeon

148
Q

●Bones are pneumatic in:

A

Birds

149
Q

●An insect - catching plant is:

A

Nerium

150
Q

●The method not used as a Biological control is:

A

Useof pesticides

151
Q

●Male (Anopheles) mosquito feeds on:

A

Nectar offlower

152
Q

●Besides ear ossicles, the cavity of the middle ear inhumans contains:

A

Perilymph

153
Q

●The percentage of water content in the human bloodplasma normally varies from:

A

91-92

154
Q

“●”“Sodium Pump”” operates in:”

A

Nerve Pulse

155
Q

●The element which is rich in most leafy vegetables is:

A

Iron

156
Q

●The function of pacemaker is:

A

Initiation of heartbeat

157
Q

●The best method of disposal of garbage is:

A

Landfilling

158
Q

●In ‘Scorpion,’ poison is present in the:

A

sting

159
Q

●The end product of the digestion of starch in thealimentary canal is:

A

Glucose

160
Q

●Number of eyes in an earthworm is:

A

No eyes

161
Q

●Acupuncture is:

A

a treatment method with needles

162
Q

●Some viruses have RNA but no DNA. This wouldindicate that:

A

these viruses have no inheritableinformation

163
Q

●The presence of cavities is an adaptation of:

A

WaterPlants

164
Q

●Liver-oil of fish is rich in:

A

Vitamin A

165
Q

●Dialysis is used to perform the function of:

A

Kidneys

166
Q

●Pesticides are used to destroy:

A

Insects

167
Q

●What is the common in AIDS, mumps andpoliomyelitis?

A

These are caused by viruses

168
Q

●Protein which renders a cell less susceptible to attackby viruses is called:

A

Inferon

169
Q

●Haemophilia is mostly associated with:

A

Royalfamilies

170
Q

●Approximately, how many times each day does ourheart valves open and lose normally?

A

1,00,000times

171
Q

●Sugarcane plants are usually propagated byvegetative means because:

A

They do not produceseeds

172
Q

●The pigment involved in photosynthetic activity is:

A

Chlorophyll

173
Q

●Free-living nitrogen fixing micro-organism are:

A

Rhizobia

174
Q

●Aspartame is the name of a product used by diabeticpatients as sweetening agent. It belongs to theclass of:

A

Peptides

175
Q

●Why radiologists do not take direct X-rayphotographs of intestine?

A

X-rays are not ableto capture clear picture

176
Q

●Exobiology deals with the study of:

A

Life in otherplanets and space

177
Q

●A person with ‘AB’ blood group is sometimes called auniversal recipient because of the:

A

lack ofantibodies in his blood

178
Q

●The normal temperature of human .body on theKelvin scale is:

A

310 degree Kelvin

179
Q

●Most of the desert plants bloom during night timebecause:

A

the desert insects are active duringnight time

180
Q

●It is possible to produce seedless tomato fruits by:

A

spraying hormones on flowers

181
Q

●Diabetes mellitus is caused due to deficiency ofhormone insulin, secreted by:

A

Pancreas

182
Q

●People drinking water from a shallow hand pump,are likely to suffer from all of the followingdiseases except:

A

Fluorosis

183
Q

●Besides proteins and carbohydrates, other elementsof nutritional value found in milk, include:

A

Calcium and Potassium

184
Q

●Fat present below the skin surface in our body, actsas a barrier against:

A

loss of heat from the body

185
Q

●Oxygen transportation in a human body takes placethrough:

A

Lungs, Blood and Tissue

186
Q

●Corpus luteum is a mass of cells found in:

A

Ovary

187
Q

●Alpha-keratin is a protein, present in:

A

Skin

188
Q

●What is the average fat content of buffalo milk?

A

7.2 %

189
Q

●The major component of honey is:

A

Fructose

190
Q

●Arteries supplying blood to the heart are called:

A

Coronary arteries

191
Q

●Daily intake of proteins, recommended for amoderately active woman is:

A

46 gram

192
Q

●A tree species in Mauritius failed to reproducebecause of the extinction of a fruit-eating bird.Which one of the following was that bird?

A

Dodo

193
Q

●Which one of the following statements regardingstarch and cellulose is correct?

A

Both of them areof plant origin

194
Q

●Ergotism is due to consumption of:

A

Contaminatedwater

195
Q

●The complete conversion of glucose, in the presenceof oxygen, into carbon dioxide and water withrelease of energy is called:

A

Aerobic respiration

196
Q

●The major chemical compound found in humankidney stones is:

A

Calcium oxalate

197
Q

●The transfer of energy from one chemical substanceto another depends on the size of energy ___emitted from one substance.

A

Quanta

198
Q

●The existence of characteristic energy levels fordifferent chemical substances is useful for theiridentification by the analysis of ___ lines.

A

Spectral

199
Q

●In optics, the ___ law relates the absorption of light tothe properties of the material through which thelight is traveling.

A

Beer-Lambert

200
Q

●The term condensed matter physics was apparentlycoined by ___ when he renamed his researchgroup

A

previously solid-state theory in 1967. Philip Anderson

201
Q

●Dynamics are described in terms of matter particlesexchanging messenger particles that carry theforces. These messenger particles are known asgluons; W- and W+ and Z bosons; and the ___,respectively.

A

Photons

202
Q

●The Big Bang model rests on two theoretical pillars:Albert Einstein’s general relativity and the ___principle

A

Cosmological

203
Q

●Chemically, DNA consists of two long polymers ofsimple units called nucleotides, with backbonesmade of sugars and phosphate groups joined by___ bonds.

A

ester

204
Q

●The ___ system is instrumental in regulatingmetabolism, growth, development, puberty, tissuefunction, internal environment (temperature,water balance, and ions) and also plays a part indetermining mood.

A

endocrine

205
Q

●___ indicates the molecular weight of a compoundand, from the fragmentation patterns, its structure.

A

Mass spectrometry

206
Q

●Syphilis is a sexually transmitted disease caused bythe spirochetal bacterium Treponema pallidumsubspecies ___.

A

pallidum

207
Q

●Pertussis, also known as ___, is a highly contagiousdisease caused by the bacterium Bordetellapertussis.

A

whooping cough

208
Q

●HIV infects primarily vital cells in the humanimmune system such as helper T cells (to bespecific, CD4+ T cells), macrophages, and ___cells.

A

dendritic

209
Q

●Hepatitis B is a disease caused by hepatitis B virus(HBV) which infects the ___ of hominoidae,including humans, and causes an inflammationcalled hepatitis.

A

liver

210
Q

●Momentum is a conserved quantity. Althoughoriginally seen to be due to Newton’s laws, this lawis also true in ___.

A

special relativity

211
Q

●___ is used in MRI and NMR machines, massspectrometers, and the beam-steering magnetsused in particle accelerators.

A

Superconductivity

212
Q

●When superconductive, a material has an electricalresistance of exactly zero and no interior magneticfield (the ___ effect).

A

Meissner

213
Q

●Superconductivity was discovered in 1911 by ___,who was studying the resistance of solid mercuryat cryogenic temperatures using the recently-discovered liquid helium as a refrigerant.

A

HeikeKamerlingh Onnes

214
Q

“●Unit of Mass is defined as ““the mass of a particularsolid cylinder made of platinum-iridium alloy keptin ___, known as the International PrototypeKilogram””.”

A

Paris

215
Q

●The turning effect produced by a force on a rigidbody about a point, pivot or fulcrum is called themoment of a force or ___.

A

torque

216
Q

●The ___ Barometer is an improved version of thesimple mercury barometer. It gives more accuratereading of the atmospheric pressure because avernier scale is used here.

A

Fortin

217
Q

●The submarine is an application of ___. On surface,the submarine floats, with its conning tower andmost of the deck, being clear of the water.

A

Archimedes Principle

218
Q

●The front part of the eye is covered by a transparentspherical membrane called the ___. Light entersthe eye through it.

A

cornea

219
Q

●The space between the retina and eye lens is filledwith a fluid called ___. It is a spot at which theoptic nerve enters the eye and is insensitive to lightand hence the name.

A

vitreous humor

220
Q

●A compound is formed by combination of two ormore elements in a definite proportion. Forexample, water is a compound of hydrogen andoxygen elements present in the ratio of ___.

A

1 :8

221
Q

●A ___ is a solution in which the particle size rangesbetween 10-7 and 10-5 cm. For example, milk,blood, honey, smoke, ink, gum, starch solution etc.

A

colloid

222
Q

●The outermost shell of an atom cannot accommodatemore than 8 electrons, even if it has a capacity toaccommodate more electrons. This is a veryimportant rule and is also called the ___.

A

OctetRule

223
Q

●In ___, the Eleventh General Conference of Weightsand Measures recommended an InternationalSystem of Units (abbreviated as SI) based on themetric system of measurement.

A

1960

224
Q

●If the two forces acting on the body have the sameline of action, then the moment becomes ___.

A

Zero

225
Q

●Molecules are formed by combination of atoms. Thenumber of atoms, which constitute one moleculeof an element, is called its ___.

A

atomicity

226
Q

●The cell theory first developed in 1839 by ___ andTheodor Schwann, states that all organisms arecomposed of one or more cells that all cells comefrom preexisting cells.

A

Matthias JakobSchleiden

227
Q

●___ are self-replicating organelles that occur invarious numbers, shapes, and sizes in thecytoplasm of all eukaryotic cells.

A

Mitochondria

228
Q

●The cell nucleus is the most conspicuous organellefound in a eukaryotic cell. It houses the cell’schromosomes, and is the place where almost allDNA replication and RNA synthesis (___) occur.

A

transcription

229
Q

●The function of the ___ is to conduct prepared foodfrom the leaves to the growing parts of the plant and the storage organs.

A

phloem

230
Q

●Acceleration is defined as the rate of change ofvelocity of a moving body with time. This changecould be a change in the ___ or its direction ofmotion or both.

A

speed of the object

231
Q

●An iron ball suspended from a hook by a wire has twoforces acting on it, its weight, acting verticallydownward and the ___ acting on the wirevertically upward.

A

Tension

232
Q

●The fifth state refers to super cooled solid. Atoms losetheir separate identity and get condensed. Theybehave like a single super atom. This study isbased upon ___ condensation concept developedin 1924.

A

Bose-Einstein

233
Q

●The ___ is a large complex of RNA and proteinmolecules. They each consist of two subunits, andact as an assembly line where RNA from thenucleus is used to synthesise proteins from aminoacids.

A

ribosome

234
Q

●The ___ is the transport network for moleculestargeted for certain modifications and specificdestinations, as compared to molecules that willfloat freely in the cytoplasm.

A

endoplasmicreticulum

235
Q

●The point through which the resultant of the weightsof all the particles of the body acts is called its____.

A

centre of gravity

236
Q

●The pressure exerted by a liquid on the base of thecontainer depends on the vertical height of theliquid over it not on the area of ____.

A

cross-section

237
Q

●Metals are generally solids with characteristics suchas hardness, malleability, ductility high ____,luster and ability to conduct heat and electricity.

A

tensile strength

238
Q

●Centrosomes are composed of two centrioles, whichseparate during cell division and help in theformation of the ____.

A

mitotic spindle

239
Q

●_____ gave the idea of using names for species and heused a pattern where there were two words usedin each name: a noun as a genus name andgenerally an adjective as a species name.

A

Linnaeus

240
Q

●____ which is found abundantly in stems of plantslike hemp, jute and coconut, basically providesmechanical support to the plant by giving rigidity,flexibility and elasticity to the plant body.

A

Sclerenchyma

241
Q

●Blood consists of fluid called plasma, which has redblood corpuscles (RBC), white blood corpuscles(WBC) and blood ____.

A

platelets

242
Q

●The human skull shapes the head and face, protectsthe brain, and houses and protects special senseorgans for taste, smell, hearing, vision, andbalance. It is constructed from ____ bones.

A

22

243
Q

●The ribs are curved, flat bones with a slightly twistedshaft. The ____ pairs of ribs form a ribcage thatprotects the heart, lungs, major blood vessels,stomach, liver, etc.

A

12

244
Q

“●Acquired Immuno Deficiency Syndrome”” which isthe medical expansion for AIDS was first detectedin June 1981 in USA. The disease is caused by a____- HIV (human immuno deficiency virus).”

A

retrovirus

245
Q

●Synthetic ____ are sodium salts of long chain benzenesulphonic acids or sodium salts of long chain alkylhydrogen sulphates.

A

Detergents

246
Q

●Petroleum is a mixture of a very large number ofdifferent hydrocarbons; the most commonly foundmolecules are alkanes (linear or branched),cycloalkanes, aromatic hydrocarbons, or morecomplicated chemicals like ____.

A

Asphaltenes

247
Q

●In ____ motion the particle moves from one point inspace to another which may be along a straightline or along a curved path.

A

translator

248
Q

●____ is the shortest distance covered by a movingobject from the point of reference (initial positionof the body), in a specified direction and so is avector quantity.

A

Displacement

249
Q

●A body is said to be moving with ____velocity if itcovers unequal distances in equal intervals of timeand vice-versa in a specified direction or if itchanges the direction of motion.

A

Variable

250
Q

●____ is that physical quantity which changes or tendsto change a body’s state of rest or of uniformmotion in a straight line.

A

Force

251
Q

●____ deals with the study of cellular constituents likeproteins, carbohydrates, lipids, and nucleic acidsas also the chemical processes that occur in cells.

A

Biochemistry

252
Q

●All ____ metals have one valence electron in theiratom and so, their chemical properties are similar.

A

alkali

253
Q

●The simplest version of a carbohydrate is a ____which possesses the properties of carbon,hydrogen, and oxygen in a 1:2:1 ratio.

A

monosaccharide

254
Q

●Vitamins are nutrients required in small amounts foressential metabolic reactions in the body whichare broken down in nutrition as either ____soluble (Vitamin C) or fat soluble (Vitamin E).

A

water

255
Q

●Water-soluble vitamins dissolve easily in water, andin general, are readily excreted from the body, tothe degree that ____ output is a strong predictorof vitamin consumption.

A

Urinary

256
Q

●____ is a 32-amino acid linear polypeptide hormonethat is produced in humans primarily by theparafollicular cells (also known as C-cells) of thethyroid, and in many other animals in theultimobranchial body.

A

Calcitonin

257
Q

●RNA polymerase (RNAP or RNApol) is an enzymethat produces RNA. In cells, RNAP is needed forconstructing RNA chains from DNA genes astemplates, a process called ____.

A

Transcription

258
Q

●Historically, vitamin ____ was discovered from itsrelationship to the disease pernicious anemia,which is an autoimmune disease that destroysparietal cells in the stomach that secrete intrinsicfactor.

A

B12

259
Q

●____ Test is a sensitive chemical test for the presenceof carbohydrates, based on the dehydration of thecarbohydrate by sulfuric acid to produce analdehyde.

A

Molisch’s

260
Q

●The ____ effect is the apparent change in thefrequency of a wave motion when there is relativemotion between the source of the waves and theobserver.

A

Doppler

261
Q

●____ rays have the least penetrating power, move at aslower velocity than the other types, and aredeflected slightly by a magnetic field in a directionthat indicates a positive charge.

A

Alpha

262
Q

●In humans there are 13 vitamins: 4 fat-soluble(____and K) and 9 water-soluble (8 B vitaminsand vitamin C).

A

A, D, E

263
Q

●Malaria is a mosquito-borne infectious disease causedby a eukaryotic protist of the genus ____.

A

Plasmodium

264
Q

●Thiamine is found in a wide variety of foods at lowconcentrations with ____ and pork being the mosthighly concentrated sources of thiamine.

A

Yeast

265
Q

●Amino acids are molecules containing an ____ group,a carboxylic acid group and a side chain thatvaries between different amino acids.

A

Amine

266
Q

●Pure water is ___, and can be considered either avery weak acid or a very weak base (center on thepH scale), giving it a pH of 7, or 0.0000001 M H+.

A

neutral

267
Q

●Esterification is a reversible reaction, with hydrolysis

A

“literally ““water splitting”” involves addingwater and a catalyst (commonly NaOH) to anester to get the sodium salt of the carboxylic acidand ____. Alcohol”

268
Q

●____ is a common solvent, able to dissolve paints,paint thinners, silicone sealants, many chemicalreactants, rubber, printing ink, adhesives (glues),lacquers, leather anners, and disinfectants.

A

Toluene

269
Q

●____ Law states that for a parallel beam ofmonochromatic radiation passing throughhomogeneous solutions of equal concentration theabsorbance is proportional to the path length.

A

Lambert’s

270
Q

●The transfer of energy from one chemical substanceto another depends on the size of energy ___emitted from one substance.

A

Quanta

271
Q

●The existence of characteristic energy levels fordifferent chemical substances is useful for theiridentification by the analysis of ___ lines.

A

Spectral

272
Q

●In optics, the ___ law relates the absorption of light tothe properties of the material through which thelight is traveling.

A

Beer-Lambert

273
Q

●Which law in chemistry states that at constantpressure, the volume of a given mass of an idealgas increases or decreases by the same factor as itstemperature (in Kelvin) increases or decreases?

A

Charles’s Law

274
Q

●The internal electronic energy changes of an atom areconnected to the frequency of the correspondingemitted radiation by the formula ∈=h.ν, with hthe ____constant.

A

Planck

275
Q

non-disjunct sperm 22A+XY or a non-disjunct ovum22A+XX with normal sperm ____.

A

22A+Y

276
Q

●Turners Syndrome results from the fusion of an ovum22A + X with an sperm with 22A, as a result ofwhich, the genetic composition is ____. It developsinto a female individual with rudimentary ovaries.

A

44+ X0

277
Q

●____ is a condition, which represents a change inchromosome number. Such a change is mostcommonly caused in the reproductive cells duringthe process of Gametogenesis.

A

Aneuploidy

278
Q

●____ (PKU) is a common metabolic disorder ingrowing children. A child suffering from PKU hasdefective legs and is usually unable to stand. Sucha child may also be mentally retarded.

A

PhenylKetonuria

279
Q

●Superconductivity was discovered in 1911 by ___,who was studying the resistance of solid mercuryat cryogenic temperatures using the recently-discovered liquid helium as a refrigerant.

A

HeikeKamerlingh Onnes

280
Q

●The minimum amount of the fissionable substancerequired so as to continue the chain reactionunder a given set of conditions is called ___.

A

critical mass

281
Q

●____ observed that white light is split into sevencolors and that the seven colors resemble thecolors of a rainbow namely violet, indigo, blue,green, yellow, orange and red (VIBGYOR).

A

SirIsaac Newton

282
Q

●Conventionally, the electric current is said to flowfrom a higher potential to a lower potential whilethe ____ flow from a lower potential to a higherpotential i.e., the electric current flows in adirection opposite to the flow of electrons.

A

electrons

283
Q

●German physicist, ____ showed that the flow of anelectric current through a wire depended on its’resistance’ and the potential difference betweenits ends.

A

Georg Ohm

284
Q

●____ is defined as the distance covered by a movingobject in a particular direction in unit time orspeed in a particular direction.

A

Velocity

285
Q

●If an object moving with an initial velocity ‘u’ attaina final velocity ‘v’ in time ‘t’, then acceleration ‘a’produced in the object is Acceleration = ____ withtime.

A

Rate of change of velocity

286
Q

●When an object moves through a fluid, there will befriction due to the resistance of the materialmedium which ____ with the velocity of the bodyas in the case of a rocket and aeroplane.

A

increases

287
Q

●Newton observed all material bodies’ exhibit inabilityto change by themselves, their state of rest or ofuniform motion in a straight line. This property iscalled ____.

A

inertia

288
Q

●Law of Conservation of ____ states that if no externalforce acts on a system in a particular directionthen the total momentum of the system in thedirection remains unchanged.

A

Momentum

289
Q

●Solubility is defined as the number of grams of asolute that dissolves in ____ of a solvent to form asaturated solution at a given temperature andpressure.

A

100g

290
Q

●The total number of protons and neutrons present inone atom of an element is known as its ____number.

A

mass

291
Q

●If there are two objects of masses m1 and m2separated by a distance d, the force actingbetween them is given by F=Gm1m2/d2, where Gis a constant of proportionality called theuniversal ____.

A

gravitational constant

292
Q

●Kelvin Scale of Temperature was devised by LordKelvin (1824-1907); in this scale of temperature,zero of the scale corresponds to ____ C, which issaid to be the temperature at which the volume ofa gas reduces to zero.

A
  • 2730
293
Q

●If a bottle of perfume is opened in one corner of aroom, it spreads in the whole room by ____.

A

diffusion

294
Q

●A ____ wave is a disturbance, which does not requireany material medium for its propagation and cantravel even through vacuum.

A

electromagnetic

295
Q

●Light is electromagnetic radiation, particularlyradiation of a wavelength that is visible to thehuman eye (about 400-700 nm, or perhaps ____).

A

380-750 nm

296
Q

●____ can be reduced by increasing area over whichthe thrust is exerted; this same principle explainswhy rear wheels of buses and trucks are usuallydouble.

A

Pressure

297
Q

●As one goes deeper in the swimming pool, thepressure on the ____ is found to ear drum

A

Torricellian

298
Q

●Red, green and blue are called primary colors or ____primary colors because white is obtained whenthese colors are mixed.

A

additive

299
Q

●When two or three primary colors are mixed indefinite ratio we get new colors. That is, Red +Blue = Magenta; Blue + Green = Cyan (____);Red + Green = Yellow; Red + Green + Blue =White.

A

Peacock blue

300
Q

●Colour deficiency is that defect of the eye due towhich a person is not able to distinguish betweencertain colors mainly due to the malfunctioning orabsence of a particular ____.

A

Cone

301
Q

“●The current passing through a conductor for aparticular voltage depends on the property of theconductor called ““resistance”” which is measuredin ____.”

A

ohms

302
Q

●Electrons in different metals can have differentenergies; if two of these metals are placed in aconducting liquid (____) a difference in electricalpotential is set up between them.

A

electrolyte

303
Q

●____ is based on the principle that materials withopposite electrical charges attract one another andthat some materials conduct electricity betterafter exposure to light.

A

Dry copying

304
Q

●____ are a type of unsaturated fat with trans-isomerbonds; these are rare in nature and in foods fromnatural sources; they are typically created in anindustrial process called (partial) hydrogenation.

A

Trans fats

305
Q

●When a charged body is brought near a conductor,the nearer end is induced with an opposite chargeand a similar charge is induced on the fartherend; this phenomenon is called ____.

A

electrostatic induction

306
Q

●The projectile moves forward due to the horizontalforce and downwards due to the force of gravity;the projectile follows a ____ since both the forcesact simultaneously on it.

A

curved

307
Q

●A body weighs more at the poles than at the equatorand a body’s weight will become ____ at the centreof the Earth as acceleration due to gravity is zeroat the centre of the Earth.

A

zero

308
Q

●Saturated fats have all of the carbon atoms in theirfatty acid chains bonded to hydrogen atoms,whereas unsaturated fats have some of thesecarbon atoms ____-bonded.

A

double

309
Q

●The amount of matter contained in a body does notchange with time or from place to place i.e., ____of a body remains the same throughout theuniverse.

A

mass

TRAIN-WAY (27 decks)

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