1000+ Structural Organization In Animals Multiple Choice Question Answer [Solved]

1. Which of the following statement(s) is/are correct regarding cockroaches ?

1. The body of the cockroach is segmented and divisible into three distinct regions head, thorax and abdomen.
2. Blood vascular system is of closed type.
3. They are monoecious and both sexes have well developed reproductive organs.
4. The development of P. americana is paurometabolus, meaning there is development through nymphal stage.

A. Both (i) and (ii)
B. Both (ii) and (iii)
C. Both (i) and (iv)
D. All of these
Answer : C

2. If the head of cockroach is cut off, it will still alive for as long as one week. It is because of
A. the body which is covered with a hard chitinous exoskeleton.
B. head which holds a bit of nervous system.
C. head which is of no use.
D. food capturing appratus which is found elsewhere.
Answer : C

3. The intercellular material of the given figure is solid and resists compression. Identify the figure and the label marked as A & B.

A. Fig - Cartilage, A - Collagen, B - Collagen
B. Fig - Cartilage, A - Microtubule, B - Collagen fibres
C. Fig - Bone, A - Chondrocyte, B - Chondroclast
D. Fig - Bone, A - Chondroclast, B - Osteoblast
Answer : A

4. The only type of cell seen in a tendon is
A. muscle fibres
B. reticular cells
C. collagenous cells
D. fibroblasts
Answer : D

5. Which of the following type of cell junction is not found in animal tissues ?
A. Adhering junction
B. Tight junction
C. Gap junction
D. Plasmodesmata
Answer : D

6. In cockroach head can move in all directions due to
A. absence of neck.
B. fusion of all 6 segments of head.
C. flexible neck.
D. head is small and light weight.
Answer : C

7. Cockroaches are brown or black bodied animals that are included in class _______ of phylum _______.
A. reptilia; annelida
B. insecta; arthropoda
C. insecta; annelida
D. reptilia; arthropoda
Answer : B

8. Which of the following statement(s) is/are correct about nervous system of cockroach ?

1. It consists of a series of fused segmentally arranged ganglia joined by paired longitudinal connectives on the ventral side.
2. There are six ganglia lie in the thorax, and three in the abdomen.
3. The sense organs are antennae, eyes, maxillary pulps, labial pulps and anal cerci etc.
4. Each eye consists of about 5000 hexagonal ommatidia.

A. Both (i) and (iii)
B. Only (ii)
C. Both (i) and (iv)
D. All of these
Answer : C

9. The ciliated columnar epithelial cells in humans occur in
A. Eustachian tube and stomach lining
B. bronchioles and fallopian tubes
C. bile duct and oesophagus
D. fallopian tubes and urethra
Answer : B

10. The chondrocytes of connective tissue are
A. fibre secreting cells
B. bone forming cells
C. cartilage cells
D. bone eating cells
Answer : C

11. General function of gland is to
A. protect the body.
B. control the function of epithelial tissues.
C. produce and secrete specialized compounds to control and maintain different body functions.
D. help to maintain blood pressure and nerve actions.
Answer : C

12. Which of the following is involved in the production of new blood cells ?
A. Adipose cell
B. Bone marrow
C. Liver
D. Matrix
Answer : B

13. Phallic organs in cockroach are related to
A. male excretory system.
B. male reproductive system.
C. female excretory system.
D. female reproductive system.
Answer : B

14. Compound squamous epithelium is found in
A. stomach
B. intestine
C. trachea
D. pharynx
Answer : D

15. Gizzard (proventriculus) in cockroach lies between
A. oesophagus and stomach
B. crop and mesenteron
C. mesenteron and ileum
D. oesophagus and crop
Answer : B

16. A student was given a sample of tissue. He observes and concludes the following characters.

1. The cells are composed of a single layer of tall and slender cells.
2. Their nuclei are located at the base.
3. Free surface may have microvilli.
4. It is found in the lining of stomach and intestine
5. They help in secretion and absorption.

Based on the above features identify the epithelium.
A. Cuboidal epithelium
B. Columnar Epithelium
C. Squamous epithelium
D. Glandular epithelium
Answer : B

17. Which of the following statement is correct regarding Female reproductive system of earthworm ?
A. It consists of two large ovaries, lying laterally in the 6th 7th abdominal segments.
B. Each ovary is formed of a group of five ovarian tubules or ovarioles, containing a chain of developing ova.
C. A pair of spermatheca is present in the 5th segment which opens into the genital chamber.
D. None of the above
Answer : D

18. The given figure shows open circulatory system of cockroach with structure marked as A, B and C. Which structure is a 13 pai of wing shaped involuntary muscles and mantain blood circulation?

A. A
B. B
C. C
D. Both A nad B
Answer : C

19. The shape of a persons ear is due to mainly to
A. dense regular connective tissue
B. dense irregular connective tissue
C. elastic cartilage
D. fibrocartilage
Answer : C

20. Identify figures-I and II.

Figure I Figure II
A. Dense regular Dense irregular connective tissue, connective tissue
B. Loose irregular Loose regular connective tissue, connective tissue
C. Adipose tissue, Specialized connective tissue
D. Connective tissue Areolar tissue proper
Answer : A

21. Which statement regarding anal cerci and anal style in cockroach is correct?
A. Anal cerci are absent but anal styles are present in male.
B. Anal cerci are absent and anal styles are present in female.
C. Anal styles are absent and anal cerci are present in male.
D. Anal styles are absent and anal cerci are present in female.
Answer : D

22. Read the following statements and answer the question.

1. They have a hard and non-pliable ground substance rich in calcium salts and collagen fibres.
2. They support and protect softer tissues and organs.
3. Osteocytes are present in the spaces called lacunae.
4. They also interact with skeletal muscles attached to them to bring about movements.

Which of the following type of tissue is being described by above statements ?
A. Cartilage
B. Bone
C. Blood
D. Neurons
Answer : B

23. The supportive skeletal structures in the human external ears and in the nose tip are examples of
A. ligament
B. areolar tissue
C. bone
D. cartilage
Answer : D

24. Which of the following statement (s) is/are correct ?

1. Loose connective tissue contains fibroblasts, macrophages and mast cells.
2. Adipose tissue is a type of dense connective tissue located mainly beneath the skin.
3. Tendons and ligaments are examples of dense irregular connective tissue.
4. Cartilage, bones and blood are various types of specialized connective tissue.

A. Only (i)
B. Both (ii) and (iv)
C. Both (i) and (iii)
D. (i), (iii) and (iv)
Answer : D

25. Four healthy people in their twenties got involved in injuries resulting in damage and death of a few cells of the following.
Which of the cells are least likely to be replaced by new cells?
A. Liver cells
B. Neurons
C. Malpighian layer of the skin
D. Osteocytes
Answer : B

26. Which of the following vertebrate tissues would be an excellent source of collagen?
A. Liver
B. Nerve
C. Muscle
D. Tendon
Answer : D

27. Neuroglia are
A. excitable cells of neural tissue.
B. supporting and non-excitable cells of neural tissue.
C. two to three times in volume of neural tissue.
D. protective and excitable cells of neural tissue.
Answer : B

28. In the given diagram of areolar connective tissue, the different cells and parts have been marked by alphabets (A, B, C & D). Choose the answer in which these alphabets correctly match with the parts and cells they indicate.

A. A-Adipocyte, B-Collagen fibres, C-Microfilament, D-Mast cells
B. A-Macrophage, B-Collagen fibres, C-Microfilament, D-Mast cells
C. A-Macrophage, B-Collagen fibres, C-Microtubule, D-RBC
D. A-Macrophage, B-Fibroblast, C-Collagen fibres, D-Mast cells
Answer : D

29. Smooth muscles are______.
A. voluntary, branched, uninucleate
B. voluntary, multinucleate, cylindrical
C. involuntary, cylindrical, multinucleate
D. involuntary, spindle shaped, uninucleated, tapering
Answer : D

30. Male cockroach can be identified from the female by the presence of
A. long antennae
B. wingless body
C. elongated abdomen
D. anal styles
Answer : D

31. What are the three basic components of connective tissues?
A. Ground substance, cells and basement membrane
B. Cartilage, intercellular matrix and serum
C. Cells, protein fibers and ground substance
D. Collagen, elastin and reticular fibers
Answer : C

32. Statement 1 : Intercalated discs are important regions of cardiac muscle cells.
Statement 2 : Intercalated discs function as boosters for muscle contraction waves.
A. Statement-1 and statement-2 are true and statement-2 is a correct explanation for statement-1.
B. Statement-1 and statement-2 are true and ttatement-2 is not a correct explanation for statement-1
C. Statement-1 is true, and statement-2 is False
D. Both the statements are false.
Answer : A

33. A student was given a specimen to identify on the basis of the characteristics given below.

1. They are metamerically segmented.
2. Presence of closed circulatory system.
3. They have circular and longitudinal muscles for locomotion.

Identify the specimen.
A. Frog
B. Pheretima
C. Cockroach
D. Rabbit
Answer : B

34. Which of the following animals maintain ecological balance?
A. Frog
B. Rabbit
C. Earthworm
D. Cockroach
Answer : A

36. Which of the following type of muscle tissue is being described on the basis of given statements ?

1. These muscle fibres taper at both ends and do not show striations.
2. The wall of internal organs such as the blood vessels, stomach and intestine contain this type of muscle tissue.
3. They are involuntary as their function cannot be directly controlled.

A. Skeletal muscle
B. Smooth muscle
C. Cardiac muscle
D. All of these
Answer : B

37. The figure given below shows the head region of cockroach. Identify A to F.

A. A- Compound eye, B-Ocellus, C-Maxilla, D-Mandible, E-Labrum, F-Labium
B. A- Ocellus, B-Compound eye, C-Mandible, D-Maxilla, E-Labrum, F-Labium
C. A- Ocellus, B-Compound eye, C-Mandible, D-Maxilla, E-Labium, F-Labrum
D. A- Ocellus, B-Compound eye, C-Maxilla, D-Mandible, E-Labrum, F-Labium
Answer : B

38. Which of the following statement is/are correct regarding digestive system of cockroach ?

1. Mouth opens into a short tubular pharynx, leading to a narrow tubular passage called oesophagus.
2. Gizzard helps in grinding the food particles.
3. A ring of 6-8 blind tubules called hepatic or gastric caecae is present at the junction of foregut and midgut, which secrete digestive juice.
4. At the junction of midgut and hindgut is present another ring of 100-150 yellow coloured thin filamentous malphigian tubules which help in removal of excretory products from haemolymph.

A. Only (i)
B. Both (ii) and (iii)
C. Both (i) and (iv)
D. All of these
Answer : D

39. Consider the following statements regarding cockroach and mark the correct option.

1. Head is formed by the fusion of 6-segments.
2. Mouth parts are biting and chewing type.
3. Crop is the part of mid gut.

A. Only (ii) is correct
B. (ii) and (iii) are correct
C. (i) and (ii) are correct
D. Only (iii) is correct
Answer : C

40. Match column-I with column-II and choose the correct option.

Column-I	Column-II
A. Periplaneta	I. Hepatic caecae americana
B. A ring of 6-8 blind	II. Phylum arthropoda tubules
C. Vascular system	III. Spiracles
D. 10 pairs of small	IV. Malpighian tubules holes
E. Excretion	V. Open type

A. A I; B II; C III; D IV; E V
B. A II; B I; C V; D III; E IV
C. A II; B I; C III; D V; E IV
D. A III; B IV; C II; D V; E I
Answer : B

41. When cardiac muscle cells are damaged by a heart attack, they are usually replaced by
A. connective tissue cells
B. new smooth muscle cells
C. new cardiac muscle cells
D. epithelial cells
Answer : A

42. Which of the following statement(s) is/are correct regarding compound epithelium ?
A. It is made of more than one layer of cells and thus has a limited role in secretion and absorption.
B. Their main function is to provide protection against chemical and mechanical stresses.
C. They cover the dry surface of the skin, moist surface of buccal cavity, pharynx, inner lining of ducts of salivary glands and pancreatic ducts.
D. All of the above
Answer : D

43. Match the terms given in column-I with their feature given in column-II and choose the correct option.

Column-I	Column-II
(Terms)	(Features)
A. Exocrine gland	I. They help to stop substances from leaking across a tissue
B. Endocrine gland	II. Hormones are secreted directly into the fluid bathing the gland
C. Tight junctions	III. They perform cementing to keep neighbouring cells together.
D. Adhering junctions	IV. Secretes mucus, saliva, earwax, oil, milk, digestive enzymes and other cell products

A. A IV; B II; C I; D III
B. A II; B IV; C I; D III
C. A IV; B II; C III; D I
D. A IV; B I; C II; D III
Answer : A

44. Which of the follwing statement(s) is/are correct ?

1. Cockroaches are brown or black bodied animals that are included in class insecta of phylum arthropoda.
2. Males bear a pair of short, thread like anal styles which are absent in females.
3. Heart of cockroach consists of elongated muscular tube lying along mid dorsal line of thorax and abdomen.
4. The nymph grows by moulting about 13 times to reach the adult form.

A. Only (i)
B. Both (ii) and (iii)
C. Both (i) and (ii)
D. All of the above
Answer : B

45. Epithelial tissue is distinguished from connective tissue, muscular, or nervous tissue by its
A. large extracellular matrix.
B. contractibility.
C. ability to carry action potentials.
D. basement membrane.
Answer : D

46. Lack of blood supply and presence of the noncellular basement membrane are the characteristics of the
A. muscular tissue
B. fluid connective tissue
C. epithelial tissue
D. nervous tissue
Answer : C

47. Intercalated discs are the communication junctions between the cells of
A. cardiac muscles
B. striped muscles
C. adipose tissue
D. nerve and striated muscles
Answer : A