Science Flashcards
1
Q
Which of the following parts of the central nervous system releases chemicals that regulate the pituitary gland?
A. Hypothalamus
B. Cerebellum
C. Thalamus
D. Spinal cord
A
A- hypothalamus
2
Q
The shortening of the sarcomere in skeletal muscle is directly due to the interactional of which of the following?
A. Acetylcholine and acetylcholinesterase
B. Pepsin and Pepsinogen
C. Myosin and actin
D. Dye in and kinesin
A
C. Myosin and actin
3
Q
Mutations in which of the following types of cells can be inherited by offspring?
A. Ovarian
B. Endocrine
C. Neural
D. Muscle
A
A. Ovarian
4
Q
Which of the following describes the role of tendons?
A. Tendons attach skeletal muscle to bones
B. Tendons attach two bones
C. tendons attach bones to ligaments
D. Tendons attach skeletal muscles to ligaments
A
A. Tendons attach skeletal muscle to bones
5
Q
Which of the following substances is excreated by sweat glands in response to the breakdown of protein and formation of ammonia?
A. Lysosomes
B. Water
C. Urea
D. Sebum
A
C - urea
6
Q
Which of the following terms describes the removal of metabolic waste from the body?
A. Secretion
B. Catabolism
C. Anabolism
D. Excretion
A
D - excretion
7
Q
A cell is placed in a hypertonic solution. Which of the following describes the resulting osmosis?
A. There is no flow of water
B. The net flow of water into and out of the cell is zero
C. There is a net flow of water out of the cell
D. There is a net flow of water into the cell
A
C - there is a net flow of water out of the cell
8
Q
Which of the following is an example of active transport?
A. Aquaporins in kidney cells that help concentrate urine
B. Movement of substance from an area of high concentration to an area of low concentration
C. Movement of a sodium and potassium across the cell membrane against the concentration gradient
D. Loss of water from. A cell in a hypertonic solution
A
C - movement of sodium and potassium across the cell membrane against the concentration gradient
9
Q
Which of the following vessels is responsible for carrying blood from the upper body to the right atrium of the heart?
A. Pulmonary veins
B. Aorta
C. Pulmonary artery
D. Superior vena cava
A
D - superior vena cava
10
Q
Carbohydrates are composed of which of the following?
A. Nucleic acids
B. Monosaccharides
C. Isoprenoids
D. Amino acids
A
B- Monosaccharides
11
Q
The following equation summarizes the carbonic acid bicarbonate ion buffer system of the blood
CO2 +H2O➡️ H2CO3 ➡️ HCO3- + H+
Which of the following equations shows the reaction that takes place when there are excessive H+ ions?
A. HCO3- + H+ ➡️H2co3
B. CO2 + h2o ➡️H2co3
C. H2co3 ➡️ Hco3- + H+
A
A - Hco3- + H+ ➡️ H2co3
12
Q
A student investigating the importance of wavelengths above and below the visible spectrum for photosynthesis sets up an experiment as follows over a 2 month period, all with illumination at 1 meter distance from plants grown with the same soil and water conditions
3 exposed to ultraviolet light
3 exposed to infrared light
3 exposed to white light
At the end, she finds that IR treated plants are scorched, the up plants have wilted and white light created plants to grow normally.
Which of the following statements is most likely correct?
A. Three plants do not produce sufficient replications to draw conclusions
B. Wavelengths of lights the only variable that has been changed b/w groups
C. The wavelength of light does not affect photosynthesis
D. Infracted light conditions more energy than other wavelengths
A
B - wavelengths of lights the only variable that has been changed b/w groups
13
Q
Which of he following is a weakness of correlational study?
A. Cannot be replicated
B. Cannot determine causation
C. Inability to control independent variables
D. Too many variables to control
A
Cannot determine causation
14
Q
A vasectomy is a procedure in which the vas deferens are cut. Which of the following describes why a vasectomy leads to infertility?
- the vasectomy blocks the movement of sperm from prostate gland to the bulbourethral gland
- the vasectomy blocks the movement of sperm from the epididymis into the urethra
- the vasectomy blocks the movement of speeds from the ejaculatory duct into the bulbourethral gland
- the vasectomy blocks movement of sperm from the testis into the epididymis
A
The vasectomy blocks the movement of sperm from the epididymis into urethra
15
Q
Lifelong protection after exposure to a virus such as chickenpox is due to which of the following types of immunity?
- nonspecific
- innate
- transplantation
- active
A
Active
16
Q
An equal max of which of the following states of mater would completely fill either a 100ml or 500ml container?
- gas
- solid
- liquid
- mixture
A
Gas
17
Q
Permanent damage to which of the following types of tissues in the spinal cord will cause paralysis?
- nervous tissue
- muscle tissue
- bone tissue
- connective tissue
A
Nervous tissue
18
Q
How many times larger is the volume of a cube that is 4mm on all sides compared the volume of a cube that is 2mm on all sides (round the answer to the nearest whole number)
A
8 times
19
Q
A researcher collects high resolution photographs of the earth taken from outer space at annual intervals for the last decades. This data would be most useful to analyze which of the following?
- human movement during crises
- migration patterns of large whales
- weather patterns during hurricanes
- deforestation in the rainforest
A
Sheathed patterns during hurricanes
20
Q
Identify the pathway of blood through the components of the cardiovascular system, starting with the blood entering the heart through the superior vena cava (move options into box on the right placing them in order)
- pulmonary artery
- lungs
- right atrium
- right ventricle
- pulmonary valve
A
Right atrium
Right ventricle
pulmonary valve
Pulmonary artery
Lungs
21
Q
Which of the following body systems develop from the same origin tissue as lungs?
- genitourinary system
- musculoskeletal system
- neuromuscular system
- gastrointestinal
A
Gastrointestinal
22
Q
A scientist predicts that germinating beans will use more oxygen than non germinating beans. This prediction is referred to as which of the following?
- a conclusion
- an observation
- a hypothesis
- data collection
A
A hypothesis
23
Q
Which of the following processes causes most of the carbon dioxide from the blood to move into alveoli?
- active transport using energy
- diffusion down concentration gradient
- conversion to carbon monoxide
- passive transport using carrier proteins
A
Diffusion down a concentration gradient
24
Q
Which of the following is a property of water?
- water is made up of one molecule of hydrogen and two molecules of oxygen
- water dissolves polar ionic compounds
- water requires less heat than ethanol to raise its temperature
- solid water is denser than liquid water
A
Water dissolves polar ionic compounds
25
Which of he following elements has the smallest atomic radius?
- Ge
- C
- Si
-Sn
C
26
which of the following pancreatic secretions disaccharides?
- Trypsin
- chymotrypsin
- amylase
- lipase
Amylase
27
Which of the following units is used to indicate mass?
- cm3
- Irm
-Mg
- MI
Mg
28
Histones are proteins associated with which of the following?
- blood
- sperm cells
- hair follicles
- dna
DNA
29
When an ionic salt is dissolved in water, the ions co3 and k+are formed. Which is the formula for the salt?
- KCO3
- k2co3
-k3co2
-k(co3)2
K2Co3
30
A researcher is gathering large amounts of data about patients who have a common disease and the effectiveness of various medications in comparison to a placebo. Which of the following types of graphs is the best way for the researcher to present the data?
- line graph
- pie chart
- bar graph
- flow chart
Line graph
31
Which of the following describes why water has a concave or downward curving meniscus when poured into a glass beaker?
- glass has a higher density
- water has a higher density
- the adhesive force with the glass are greater than the cohesive forces
- the cohesive forces with the glass are greater than the adhesive force
The adhesive force with the glass are greater than the cohesive forces
32
Which of the following statements correct,y describes the change in coat coloring of an arctic fox from brown in summer to white in winter?
- the fox’s phenotype changes, but the genotype does not
- the fox’s genotype changes, but phenotype does not
- both phenotype and genotype of the fox changes
- neither phenotype nor genotype of the fox changes
33
Which of the following best describes adaptive immunity?
- the bodies barrier of defense, such as mucus membranes and secretions
- the initiation of internal defenses, such as phagocytes and natural killer cells
- the initiation of the inflammatory response
- a response to specific traits of specific pathogens
A response to specific traits of specific pathogens
34
If a portion of dna strand bases read 5’ agctagcgt 3’ What would the sequence of bases on the complementary strand read?
3’ tcgatcgca 5’
5’ tcgutcgu 3’
5’ ucgaucgca3’
3’ agctagcgt 5’
3’ tcgatcgca 5’
35
Which of the following is a function of a catalyst?
- to increase the activation energy of a reaction
- to increase the rate of reaction
- to convert a nonspontaneous reaction to a spontaneous reaction
To increase product yield
To increase the rate of reaction
36
Which of the following describes the process of which carbon dioxide (dry ice) turns directly into carbon dioxide gas?
- sublimation
Deposition
- condensation
- evaporation
Sublimation
37
Which of the following occurs during inhalation?
- air moves from areas of low pressure to areas of high pressure
- the diaphragm moves downward
- the ribcage lowers
- the volume of the thoracic cavity decreases
The diaphragm moves downward
38
Which of the following body cavities is subdivided into the thoracic and abdominopelvic cavities?
- dorsal
-cranial
- vertebral
- ventral
Ventral
39
Which of the following layers of skin contains glands and hair follicles?
- stratum lucidum
- hypodermis
- stratum cornerman
Dermis
Dermis
40
Which of the following structures is present in both prokaryotic and eukaryotic cells?
- chloroplast
-cell membrane
- endoplasmic reticulum
- Golgi apparatus
Cell membrane
41
Which of the following is true about koch postulates are met regarding a disease?
- the disease is caused by a microorganism
- the disease is hereditary
- the disease is a result of a dietary deficiency
- the disease is non infectious
The disease is caused by a microorganism
42
Which of the following is part of the pulmonary circuit?
- superior vena cava
- pulmonary vein
- brachial artery
- aorta
Pulmonary vein
43
Which of the following organic molecules contain both an amine and carboxyl group?
- lipids
- chitin
- cellulose
- proteins
Proteins
44
In a certain flower red flowers are dominant over white flowers a plant heterozygous for red flowers in a plant with white flowers are crossed. which of the following is expected proportion of genotypes in the next generation
- 2 red, 2 white
- 4 red, 0 white
- 3 red, 1 white
-1 red, 3 white
2 red, 2 white
45
Osteoporosis results from which of the following
- A decline in osteoclast activity while osteoblast activity continues
- an increase in osteocyte while osteoblast activity continues at expected levels
- a decline in osteoblast activity
A decline in osteoblast activity
46
Which of the following is released by one type of immune cell to directly activate type of immune cells?
-lysosome
-perforin
Cytokines
-granzymes
Cytokines
47
The measurement indicted by the line across the centre of the cell is best referred to as which of the following?
- radius
- diameter
- area
- volume
Diameter
48
7x-6=3x-26
-5
5
8
-8
-5
49
Which of the following properties of water explains its solvent abilities for certain substances?
High surface tension
Memetic energy of liquid water
Polarity of water molecules
High specific heat
Polarity of water molecules
50
Which of the following vessels carry oxygenated blood?
Pulmonary vein
Inferior vena cava
Pulmonary artery
Superior vena cave
Pulmonary vein
51
Which of the following is a mass with the ovary to secrete hormones to maintain the uterine lining during pregnancy?
Umbilical cord
Corpus luteum
Oocyte
Oviduct
Corpus luteum
52
To separate genetic dna fragments by size, which of the following laboratory methods is most useful?
Spectrophotometry
Electrophoresis
Filtration
Titration
Electrophoresis
53
In a plant in which frizzy leaves (F) are dominant over smooth leaves (f) , which of the following crosses will produce only offspring with smooth leaves?
ff x ff
Fr xFf
FF xFF
Ff x f
ff x ff
54
Which of the following physiological responses is caused by the release of anti diuretic hormones?
Decrease in water reabsorption in the collecting duct
Decrease in the concentration of calcium in the glomerulus
Increase in water reabsorption in the collecting duct
Increase in concentration of calcium in the the glomerulus
Increase in water reabsorption in the collecting duct
55
Which of the following is the atomic number that has 12 protons and 12 neutrons?
12
24
14
144
12
56
Which of the following glands synthesizes anti diuretic hormone?
Pineal gland
Hypothalamus
Thymus
Pancreas
Hypothalamus
57
Which of the following is the process in which an ovarian follicles matures and releases a reproductive egg?
Menstruation
Ovulation
Fertilization
Oogenesis
Ovulation
58
Which of the following reasons explains why it is important for new scientific findings to be published?
- publishing findings will help scientist become more biased
Other scientist can validate or disapprove the findings
Scientist will get paid if findings are published
This prevents other scientist from preforming similar tests
Other scientist can validate or disprove the findings
59
Which of the following substances is responsible for donating H+ ions to act as a buffer when blood ph rises?
Carbon dioxide
Oxygen
Carbonic acid
Carbon monoxide
Carbonic acid
60
Which of the following is the structure through which blood exists the glomerulus?
Proximal tubule
Distal tubule
Afferent arteriole
Efferent arteriole
Efferent arteriole
61
Which of the following is the function of totipotent cell?
Carries electrical impulses
Flight’s infectious disease
Aidsthe maturation of sex cells
Develops into any kind of cell
Develops into any kind of cell
62
Which of the following statements best supports the hypothesis that viruses can cause cancer?
Genes that regulate cell division are found in some viruses
Viruses and cancer cells both replicate rapidly
Cancerous and normal cells share genetic sequence
Cellular dna has sequences related to viral sequences
Genes that regulate cell division are found in some viruses
63
In a phase diagram which of the following is the term used for a substance held at temperature and pressure where the solid, liquid and gaseous states of a substance exist simultaneously?
Critical point
Triple point
Critical temperature
Absolute zero
Triple point
64
Which of the following microorganisms lack their own metabolic pathways and can reproduce inside a host cell?
Protozoa
Helminths
Bacteria
Viruses
Viruses
65
In a phase diagram, which of the following is the term used for a substance held at a temperature and pressure the liquid and gaseous phases of a substance merge together into a single phase?
Critical point
Triple point
Critical temperature
Absolute zero
Critical point
66
Which of the following indicates the function of sodium bicarbonate released by the pancreas?
Sodium bicarbonate stimulates the pyloric sphincter
Sodium bicarbonate is a protease thta digests carbohydrates
Sodium bicarbonate neutralizes the acidity of chime
Sodium bicarbonate inhibits peristalsis
Sodium bicarbonate neutralizes the acidity of chime
67
I which of the following types of cells produce and release antibodies?
Natural killer cells
Helper T cells
Cytotoxic T cells
Plasma B cells
Plasma B cells
68
The cytoskeleton of a cell is comprised of which of the following micro molecules?
Proteins
Carbohydrates
Nuclear acid
Lipids
Proteins
69
Which of the following summarizes a change that takes place as a solid turns into a liquid?
Intermolecular forces between particles become stronger
Particles move closer together
Particles have a decrease in mobility
Particles become less ordered
Particles become less ordered
70
Which of the following are specific immune response (select all that apply)
T lymphocytes activation and Clonal expansion
Antibody production
The formaction of B cells
Complement proteins binding to and destroying bacteria
T Lymphocytes activation and clonal expansion
The formation of B cells
Complement proteins binding to and destroying bacteria
71
Which of the following is the main function of centrisoomes in animal cells?
Pathogen digestion
Organelle trafficking
Micro tube organization
Cytoplasm
Mircotubule organization
72
Testosterone is categorized as which of the following types of hormone?
- aldosterone
Progestin
Androgen
Estrogen
Androgen
73
Which of the following are the two major parts of the nervous system?
Anonomic nervous system and somatic nervous system
Peripheral nervous system and somatic nervous system
Autonomic nervous system and central nervous system
Peripheral nervous system and central nervous system
Peripheral nervous system and central nervous system
74
Hiker who finds a human body at high altitude in the Italian Alps thought the man had died recently, but tests indicate that he was shot with an arrow more then 5000 years ago. Which of the following would be the best reason for prolonged preservation of the body?
The body was frozen in the cold temperature of the alps shortly after he died and remained frozen until it was found
- the food that the person ate contained toxins that killed the bacteria that would otherwise destroy ghe body
- the arrow wound caused blood to flow out of the body, which led to enzymes that break down tissue to be cleared from the body
- the ultraviolet rays as such high altitude caused all the body’s molecules to be preserved
The body was frozen in the cold temperature of the alps shortly After he died and remained frozen until found
75
Nitrogen gas is an extremely stable because it’s structure contains which of the following?
Hydrogen bonds
Triple covalent bonds
Resonance bonds
ionic bonds
Triple covalent bonds
76
Which of the following best describes the result of using a catalyst in a chemical reaction?
The yield of a product is increased
A greater amount of heat energy is released by the reaction
A more desirable product is often formed
The reaction is completed in a shorter amount of time
The reaction is completed in a shorter amount of time
77
Which of the following substances protect the skin from ultraviolet radiation?
Keratin
Melanin
Perspiration
Sebum
Melanin
78
In a hypertonic solution, water flows through aquaporins embedded in the plasma membrane of the cell. This type of transport is best known as which of the following?
Osmosis
Active transport
Facilitated diffusion
Diffusion
Osmosis
79
Which of the following is a group that can be measured against the experimental group?
Control
Variable
Manipulated
Responding
Control
80
A myocardial infarction affects which of the following blood vessels of the heart?
Cornary artery
Pulmonary
Vena cava
Aorta
Cornary artery
81
Lithium has an atomic number of 3 and a mass number of 7. Which of the following is the number of protons in a lithium atom
12
7
4
3
3
82
Which of the following allows the AIDs virus, which contains RNA to insert viral Dna into the DNA of the host T. Ella after the aids virus enters the cell ?
Receptor protein located on the surface of the virus
Reverse transcriptase,an enzyme encoded by the virus
The phospholipids found in the envelope of the virus
The proteins that make up the capsid of the virus
Receptor proteins located on the surface of the virus
83
A patients urine output was 800 ml/hr following a treatment, the patients urine output was 1200 ml/hr. Which is the percentage change in the urine output?
50%
84
Carbon has an atomic number of 6 which of the following is true about isotope C12
Processes 6 neutrons and 6 protons
Posses 7 neutrons and 5 electrons in the nucleus
Processes 7 protons and 5 neutrons in the nucleus
Processes 6 protons and 6 electrons in the nucleus
Processes 6 neutrons and 6 protons in the nucleus
85
Which of the following structures is the flap of cartilage that prevents the movement of food into the trachea?
Glottis
Pharynx
Epiglottis
Larynx
Epiglottis
86
Which of the following actions does a hydrophilic hormone take to activate a target cell?
The hormone binds to the cell surface receptors of the target
The hormone binds to the cytosol is receptor in the target cell
The hormone enters a target cell through a transport protein
The hormone passes through the plasma membrane of the target cell
The hormone binds to cell surface receptors of the target cells
87
During muscle contractions, myosin is directly responsible for which of the following?
Forming cross bridges with actin molecules
Binding to troponin molecules
Releasing calcium from sacroplasmic reticulum
Imitating action potential along the sarcolemma
Forming cross bridges with actin molecules
88
Which of the following ions binds to troponin complex, initiating contraction of a muscle?
Potassium
Sodium
Phosphorus
Calcium
Calcium
89
A group of students performed , an experiment to test terminal velocity, which is the greatest speed obtained by a falling object. The students dropped different numbers of coffee filters and measured the resulting terminal velocity. Which of the following conclusions is supported by the data?
Terminal velocity is when the force of gravity is equal to air resistance
The greater the number of filters, the smaller the terminal velocity
Heavier objects fall faster than lighter objects
Heavier objects take more time to reach terminal velocity
Terminal velocity is when the force of gravity is equal to air resistance
90
The pleura is a connective tissue sheath that covers which of the following organs?
Liver
Spleen
Heart
Lung
Lung
91
Which of the following best describes the hypothesis that viruses can cause cancer?
Cancerous and normal cells share genetic sequences
Genes that regulate cell division are found in some viruses
Viruses and cancer cells both replicate rapidly
Cellular dna has sequences released
Genes that regulate cell division are found in some viruses
92
Which of the following is the appropriate threshold value for mammalian neurons?
0mv
+35 mv
-80 mv
-55 mv
-55 mv
93
Which of the following is a function of a totipotemt cell?
Carried electrical impulses
Develops into any kind of cell
Aids in the maturation of sex cells
Fights infectious diseases
Develops into any kind of cell
94
In which of the following data table of an experiment carried at 4 degree Celsius over 4 hrs , which of the following options represents the dependent variable?
Duration
Temperature
Bag mass change
Sucrose concentrations
Bag mass change
95
In a hypertonic solution water flows through aquaporins embedded into the plas,a membrane of the cell . This type of transport is best known as which of the following?
Facilitated diffusion
Active transport
Diffusion
Osmosis
Osmosis
96
Which of the following occurs in an oxidation reaction?
Removal of oxygen
Addition of neurons
Removal of electron
Addition of carbon
Removal of electron
97
Which of the following layers of skin lacks blood vessels?
Hypodermics
Papillary
Epidermis
Reticular
Epidermis
98
Which of the following immune system molecules creates holes in the cell membrane of their target cells in order to destroy the cell?
Interferon
Perforin
Lymphotoxins
Cytokines
Perforin
99
Which of the following terms describes the relaxation of the chambers of the heart during the cardiac cycle?
Systole
Tachycardia
Diastole
Bradycardia
Diastole
100
Which of the following describes a genetic mutation that results in uncontrolled division of a single cell with in the body?
Stem cell
Translation
Gene therapy
Cancer
Cancer
101
Both digestion and absorption happen in which of the following of the digestive system?
gallbladder
Esophagus
Stomach
Small intestine
Small intestine
102
Which of the following is a function of bone ?
Detoxification of alcohol
Secrete hormones
Storage of minerals
Production of otolith
Storage of minerals
103
Which of following organs filters excess solutes from the blood?
Spleen gallbladder
Kidneys
Stomach
Kidneys
104
Lipids absorbed in the small intestine will first enter which
Arteries
Lacteal vessels
Veins
Interstitial spaces
Lacteal vessels
105
Experiments cannnot validate hypothesis’s, only falsify them. The statement can be restated in which of the following ways?
Until disproved , an explanation for an observation is valid
Certain concepts cannot be subjected to direct experimentation
Ahypothysis thta has been falsified remains provisional
A hypothesis that has been falsified remains provisional
106
An individual suffers severe blunt trauma to the thoracic cavity. Which of the following organs are at the greatest risk from the injury?
Brain and spinal cord
Liver and stomach
Large and small intestine
Heart and lungs
Heart and lungs
107
A researcher writes grant proposal to repeat an experiment that has recently published by another researcher. Which of the following statements best supports the grant proposal?
Reporting published work with changed variables will extend the previous results
Funding this important research h will benefit sciemce
Repeating published work will provide independent confirmation of the results
Repeating published work will provide independent confirmation of the results
108
Which of the following conclusions are supported by the data
Air resistances is greater for a then b
The greater the mass of an object , the fasted it will fall
The time of fall is independent of the mass of the objects
Objects A and B will fall at the same time.
The time of the fall is independent of the mass of the objects
109
If a mothers ____ cell contains mutated dna, this mutation can be passed to offspring
Gene
Stem
Sex
Germ
Germ
110
How much stronger is the hydrogen ion concentration of ph 4 solution as compared to ph 9?
100,000
0.000001
50
5
100,000
111
A study found 2 processes. Process A and process B to be correlated. Which of the following is true of these processes?
The study indicates the process A cause process b
The study does not indicate a casual relationship between the processes
The study cannot indicate whether process A and B are a negative relationship
The study cannot indicate whether process a and b have a positive relationship
The study does not indicate a casual relationship between the processes
112
Genetic information describing the characteristics of an organism is found in which of the following?
Membranes
Ribosome
Cilia
Nuclei
Nuclei
113
Which of the following allows for Repolarization of a neuron?
The opening of sodium opening of potassium channels, allowing potassium to leave the neuron
The closing of both sodium and potassium channels to restrict movement of ions into and out of the neuron
The opening of potassium channels, allowing potassium to leave
114
Which of the following properties does soap have that makes it useful for washing dirt off one’s hands with water?
Soaps enzymatic action helps to dissolve grime into smaller particles
Soaps dual polar and Nonpolar nature helps bind to oil and water
Soaps rough texture physically scours grime off
Soap’s acidity causes grime to precipitate into the water
Soaps dual polar and Nonpolar nature helps bind oil and water
115
Which of the following growth curves shows a population that is at its carrying capacity?
A
B
C
D
A
116
A researcher wants to gather data on the average wing strength of all birds found that American northwest the researcher only has one small net,so all large birds were excluded from the study. The researchers results for different than expected, but he believes his data to estimate the strength of birds.
For which of the following reasons should this data be rejected?
Data contradicts the control group
Data cannot be displayed graphically
Data were different than expected?
Data are biased by the methodology
Data are biased Methodology
117
Which of the following shows the correct order to most simple to most complex
Organs, tissues, cells, Atoms
Atoms, cells,tissues, organs
Cells, tissue, atoms, organs
Atoms, organs, tissues, cells
Atoms, cells, tissues, organs
118
Which of the tools can be used to measure the turbidity of a liquid by measuring the transmission of light though the sample?
Electrophorometer
Microdensitometer
Spectrophotometer
Centrifuge
Spectrophotometer
119
The microchondrial inner membrane Carries out the same function in cellular respiration as the membrane of chloroplast in photosynthesis which completes the sentences above?
Tonoplast
Thylakoid
Nuclear
Epithelial
Thylakoid
120
Which of the following regions of the body are the tibia and fibula ?
Tarsal
Coxal
Crural
Anticubital
Crural
121
Emphysema caused by damaged alveoli from toxins and pollutants is luckily to result in the body have difficulty performing which of the following?
Exchanging oxygen and carbon dioxide
Producing enzymes
Releasing histamine and acetylcholine
Absorbing food
Exchanging oxygen and carbon dioxide
122
Which of the following structures is an exocrine gland?
Pineal gland
Parathyroid
Parotid gland
Pituitary gland
Parotid gland
123
Which of the following classes of biological molecules includes enzymes?
Carbohydrates
Lipids
Proteins
Vitamins
Protein
124
Which of the following is a component of integumentary system that secretes pheromones?
Fossa ovalis
Seminiferous tubule
Dermal papilla
Apocrine
Apocrine
125
Which of the following functions does myelin sheath perform for a nerve cell?
Regeneration
Nutrition
Insulation
Sensory perception
Insulation
126
A triple point of substances is the temperature and pressure at which the substances exist at which of the following
Simultaneously in soil, Joel, and plasma phrases
As a sol with gas and solid, trapped in the liquid
Simultaneously in solid liquid and gas phases
As gel with solid and liquid, tracked him gas
Simultaneously in solid liquid and gas phases
127
An organism with an unknown genotype is crossed with n other organism that shows the recessive trait (as). The punnet square above shows the results. Which of the following is the unknown genotype?
aa
A
a
AA
aa
128
To accurately measure the density of a series of small irregular solids made of plastic , wood, fiberglass and glass. A small student will need which of the following laboratory tools?
Graduate cylinders, water, weighing balance
Weighing balance, Bunsen burner, metric ruler
Graduated cylinder, spectrophotometer, water
Graduated beaker, metric ruler, water
Graduated cylinders, water, weighing balance
129
Dow which of the following reasons does chloride ion have a negative charge?
It gains an electron
It loses an elect
It lost a proton
It gains a proton
It gains an electron
130
A patient goes to the dr with a cold and sore throat and asks for antibiotics. The dr refuses to prescribe antibiotics because the illness is caused by which of the following?
Viruses
Bacteria
Protist
Iris
Viruses
131
The covalent binds between the monomers of n enzyme macromolecule are
Glycosidic bonds
Phosphodiester bonds
Peptide bonds
Ester bonds
Peptide bonds
