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Biology XI > Chapter 7: Structural Organisation in Animals > Flashcards

Chapter 7: Structural Organisation in Animals Flashcards

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1
Q

In unicellular organisms, all functions like Digestion, respiration and reproduction and performed by a ___________

A

Single Cell

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2
Q

A group of similar cells alongwith intercellular substances perform Specific function, Such an Organisation is called _________

A

Tissue

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3
Q

All complex animals consist of only _______ types of tissue

A

Four (4)

Epithelial
Connective
muscular
neural

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4
Q

Tissue are organised in a specific proportion and pattern to form an _________

A

Organ

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5
Q

When two or more organs perform a common function by their physical and/or chemical interaction, They together form __________

A

Organ System
e.g - Digestive system, respiratory system etc

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6
Q

Our heart consists of all the ________ types of tissues

A

Four

Epithelial
Connective
muscular
neural

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7
Q

__________ refers to study of form or externally visible feature

A

Morphology

In plant or microbes, the term morphology precisely means only this, in case of animal this refers to the external appearance of the Organ or parts of the body

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8
Q

The word Anatomy conventionally is used for the study of __________ of internal organs in the animals

A

morphology

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9
Q

Frogs can live both on land and in freshwater and belong to Class ________ of phylum ________

A

Amphibia

Chordata

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10
Q

The most common species of frog found in india is _________

A

Rana tigrina
(Indian BullFrog)

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11
Q

Frogs do not have constant body temperature i.e. their body temperature varies with the temperature of the environment, Such animals are called Cold blooded or ___________

A

Poikilotherms

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12
Q

Frogs have the ability to change the colour to hide them from their enemies is called _____________

this protective coloration is called ________

A

Camouflage

Mimicry

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13
Q

During peak summer and winter frogs take shelter in deep burrows to protect them from extreme heat and cold. This is known as Summer sleep or ____________ and winter sleep___________

A

Aestivation

Hibernation

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14
Q

The frog skin is smooth and slippery due to the presence of _________

A

Mucus

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15
Q

The frog never drinks water but absorb it through the __________

A

Skin

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16
Q

Body of a frog is divisible into _______ and _______ ,A neck and tail are absent

A

Head
Trunk

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17
Q

Eyes of frog covered by a ____________ membrane that protects them while in water. on either side of eyes a membranous ___________(ear) receives sound signals

A

Nictitating

Tympanum

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18
Q

The hind limbs have _____ digits and they are larger and muscular than fore limbs that end in _______ digits. Feet have webbed digits that help in swimming

A

Five

Four

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19
Q

The differences in appearance between males and females of the same species is called __________

A

sexual dimorphism

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20
Q

Male frogs can be distinguished by the presence of sound producing ______ and also a copulatory pad on the ______ digit of the fore limbs which are absent in Female frog

A

Vocal Sacs
First digit

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21
Q

Frogs are _________ and hence the length of intestine is reduced

A

Carnivores

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22
Q

The frog mouth opens into the _________ that leads to the Oesophagus through ______

A

Buccal cavity
Pharynx

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23
Q

Liver secretes Bile that is stored in __________

A

Gall bladder

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24
Q

___________, a digestive gland produces Pancreatic juice containing digestive enzymes

A

Pancreas

25
Q

In Frog Food is captured by _________ tongue

A

Bilobed

26
Q

Digestion of food takes place by the action of _____ and _______ secreted from the walls of the stomach. Partially digested food Called ________ is passed from stomach to the first part of the small intestine, the __________

A

HCL
Gastric Juices
Chyme
Duodenum

27
Q

The duodenum receives bile from gall bladder and Pancreatic juices from the pancreas through a common __________

A

Bile duct

28
Q

Bile emulsifies fat and pancreatic juices digest ___________

A

Carbohydrate and Proteins

29
Q

Final digestion takes place in the intestine, Digested food is absorbed by the numerous Finger-like folds in the inner wall of intestine called______ and ___________

A

Villi

Microvilli

30
Q

Frogs respire on land and in water by two different methods, in water , skin acts as aquatic respiratory organ , this mode of respiration is called ___________. On land the buccal cavity, skin and lungs act as the respiratory organs , the respiration by lungs is called ____________

A

Cutaneous Respiration

Pulmonary respiration

31
Q

During Aestivation and Hibernation gaseous exchange takes place through __________

A

Skin

32
Q

The vascular system of frog is well-developed _________ type
The blood vascular system involves Heart,blood vessels and __________

A

Closed

Blood

33
Q

The lymphatic system consists of lymph , lymph channels and _________

A

Lymph nodes

34
Q

Frog has _____ Chambers heart, ______ atria and _____ Ventricle and heart is covered by a membrane called ___________

A

Three Chambers
2 atria
1 ventricle
Pericardium

35
Q

A triangular structure called __________ joins the Right Atrium. It receive blood through the major Veins Called __________

A

Sinus venosus
Vena cava

36
Q

The Ventricle opens into a sac like ___________on the ventral side of the heart

A

Conus arteriosus

37
Q

The blood from the heart is carried to all parts of the body by the _________

A

Arteries (Arterial system)

38
Q

The ________ collect blood from different parts of body to the heart and form the _________

A

Veins
Venous system

39
Q

Special Venous connection between liver and intestine is called ____________ and connection between Kidney and lower parts of the body is called __________

A

Hepatic portal system

Renal portal system

40
Q

The blood is composed of plasma and Cells. The blood cells are
RBC (Red blood cells) or Erythrocytes
WBC (White blood cells) or Leucocytes and _________

A

Platelets

41
Q

In frog RBC’s are nucleated and contain red coloured pigment namely __________

A

Haemoglobin

42
Q

The elimination of nitrogenous wastes is carried out by a well developed _____________

A

Excretory system

43
Q

The excretory system consists of a pair of ________, ureters ,cloaca and urinary bladder

A

Kidneys

44
Q

Each Kidney is composed of several structural and functional units called ____________

A

Uriniferous tubules or Nephrons

45
Q

Two ureters emerge from the kidneys in the _________ frog, The ureters act as ______________ which opens into the cloaca

A

Male

Urinogenital duct

46
Q

In female frogs the ureters and ________ open separately in the cloaca

A

Oviduct

47
Q

The frog excretes Urea and thus is a ___________ animal

A

Ureotelic

48
Q

In frog the nervous system is organised into a
Central nervous system (Brain and spinal cord)
Peripheral nervous system(Cranial and spinal nerves)
autonomic nervous system (Sympathetic and parasympathetic)
There are ______ pairs of cranial nerves arising from the brain .

A

10 (Ten)

49
Q

Brain is enclosed in a bony structure called Brain box or ____________

A

Cranium

50
Q

The frog brain is divided into
Fore-brain
mid-Brain
hind-Brain
which parts of brain comes under these three

A

Fore-brain -Olfactory lobes, paired cerebral hemispheres and unpaired diencephalon.
mid-Brain- A pair of optic lobes
hind-Brain -Cerebellum and medulla oblongata

51
Q

The Medulla oblongata passes out through the _________ and continues into spinal cord which is enclosed in the vertebral column

A

Foramen magnum

52
Q

External ear is absent in frogs and only ____________ can be seen externally, The ear is an organ of hearing as well as __________

A

tympanum
Balancing (equilibrium)

53
Q

Male reproductive organs consist of a pair of yellowish ovoid Testes which are found adhered to the upper part of kidneys by a double fold of Peritoneum called ___________

A

Mesorchium

54
Q

Vasa efferentia are ______ in number that arise from testes, They enter the kidneys on their side and open into _________ canal

A

10-12

Bidder’s canal

55
Q

In female frog the ovaries are situated near kidneys and there is no ______________ connection with kidneys

A

functional

56
Q

A mature female can lay __________ ova at a time.

A

2500 to 3000

57
Q

In frog, Fertilisation is ______________ and takes place in water

A

External

58
Q

In frog development involves a larval stage called _________,

A

Tadpole

59
Q

Tadpole undergoes _______________ to form adult

A

Metamorphosis

The changes in the stages from a larva to an adult are known as -metamorphism

Biology XI (19 decks)

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