NDA - Structural Organization In Animals 1000+ MCQ [Solved] PDF Download

1. 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

2. 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

3. 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

4. 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

5. 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

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

7. 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

8. The diagram given below represents the reproductive organ of male cockroach. Choose the correct labelling of the part of marked as A, B, C and D.

A. A 8th sternum, B - Anal cercus, C - 10th tergum, D - Anal style
B. A - 10th tergum, B - Anal cercus, C - Anal style, D - 8th sternum
C. A - Anal style, B - Anal cercus, C - 10th tergum, D- 8th sternum
D. A - Anal cercus, B - 8th sternum, C - 10th tergum, D - Anal style.
Answer : A

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

10. 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

11. 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

12. Which of the following types of connective tissue is mismatched with its matrix ?
A. Areolar Loosely packed matrix of protein fibres
B. Bone Mineralized matrix
C. Cartilage Highly vascular matrix
D. Blood Liquid matrix
Answer : C

13. 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

14. The frog never drinks water but absorbs it through one of its respiratory organ. Identify the organ.
A. Skin
B. Lung
C. Buccal cavity
D. None of the above.
Answer : A

15. 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

16. Match the types of connective tissue given in column-I with their examples given column-II and choose the correct option.

Column-I	Column-II
(Types of connective)	(Examples)
A. Loose connective	I. Tendons and ligaments tissue
B. Dense regular	II. Skin tisue
C. Dense irregular	III. Cartilage, bones, blood tissue
D. Specialized	IV. Fibroblasts, macrophages connective tissue and mast cells

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

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

18. 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

19. The major functions of loose connective tissue include
A. occupying spaces between organs and supporting epithelia.
B. supporting and surrounding blood vessels and nerves
C. cushioning organs, storing lipids and facilitating diffusion.
D. All of the above
Answer : D

20. Cartilage tissues are likely to be slow in healing following an injury because
A. cartilage cells cannot reproduce.
B. they lack direct blood supplies.
C. the intercellular material is missing.
D. cartilage cells are surrounded by fluids.
Answer : B

21. Read the following statements.

1. It is a contractile tissue present only in the heart.
2. Cell junctions fuse the plasma membranes of these cells and make them stick together.
3. Communication juntions at some fusion points allow the cells to contract as a unit, i.e., when one cell receives a signal to contract, its neighbours are also stimulated to contract.

Which of the following type of tissue is being described by the above statements ?
A. Skeletal muscle
B. Cardiac muscle
C. Smooth muscle
D. Cartilage
Answer : C

22. 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

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

24. The fibres of which of the following muscles are fusiform and do not show striations
A. Skeletal muscles
B. Cardiac muscles
C. Both (a) and (b)
D. Smooth muscles
Answer : D

25. 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

26. Refer the given figure of female reproductive system of cockroach and identify the correct labels (marked as 1, 2, 3 and 4) which are collectively called genital pouch.

A. 1 & 2
B. 1 & 3
C. 2 & 4
D. 3 & 4
Answer : D

27. Read the following statements and answer the question.

1. It is made of a single thin layer of flattened cells with irregular boundaries.
2. They are found in the walls of blood vessels and air sacs of lungs.
3. They are involved in functions like forming a diffusion boundary.

Which of the following characteristics of tissue is being described by the above statements ?
A. Squamous epithelium
B. Columnar epithelium
C. Ciliated epithelium
D. Compound epithelium
Answer : A

28. The figure given below shows the alimentary canal of cockroach with few structures labelled as 1, 2, 3 and 4. Identify the correct identification of the structure which is also called proventriculus and helps in grinding the food particles.

A. 1
B. 2
C. 3
D. 4
Answer : C

29. In cockroach, the testes are present in
A. 3, 4, 5 abdominal segments
B. 4, 5, 6 abdominal segments
C. 5, 6, 7 abdominal segments
D. 6, 7, 8 abdominal segments
Answer : B

30. Which of the following animal's sensory system does not has eyes but does possess light and touch sensitive organs (receptor cells) to distinguish the light intensities and to feel the vibrations in the ground?
A. Frog
B. Snake
C. Earthworm
D. Cockroach
Answer : C

31. Which one of the following pairs of structures distinguishes a nerve cell from other types of cell ?
A. Vacuoles and Fibres
B. Flagellum and Medullary sheath
C. Nucleus and Mitochondria
D. Cell body and Dendrites
Answer : D

32. 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

33. The following figure shows the extarnal features of cockroach with few structures labelled as A, B, C, D, & E. Identify A to E .

A. A- Mesothorax, B-Pronotum, CMetathorax, D-Tegmina, E-Anal style
B. A- Pronotum, B-Metathorax, C-Mesothorax, D-Tegmina, E-Sterna
C. A- Pronotum, B-Mesothorax, C-Metathorax, D-Tegmina, E-Anal cerci
D. A- Pronotum, B-Mesothorax, C-Metathorax, D-Tegmina, E-Anal style
Answer : C

34. Tendons and ligaments are the examples of
A. areolar connective tissue
B. adipose tissue
C. dense regular connective tissue
D. loose connective tissue
Answer : C

35. 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

36. Muscle tissue cells are contractile, which means they
A. are responsible for the production and secretion of enzymes.
B. are specialized in contraction and relaxation.
C. help in the movement of involuntary organs only.
D. all of the above
Answer : B

37. The given figure shows the digestive system of cockroach with few structures marked as A, B, C and D. Identify structures A to D.

A. A-Gizzard, B-Crop, C-Hepatic caecae, D-Malpighian tubules
B. A-Crop, B-Gizzard, C-Hepatic caecae, D-Malpighian tubules
C. A- Crop, B-Gizzard, C-Malpighian tubules, D-Hepatic caecae
D. A- Gizzard, B-Crop, C-Malpighian tubules, D-Hepatic caecae
Answer : B

38. Nervous tissue cells that play several supporting roles but do not transmit impulses are called
A. glial cells
B. dendrites
C. nerve cells
D. neurons
Answer : A

39. Hair present in the skin are
A. epidermal in origin and made of dead cells.
B. epidermal in origin and made of living cells.
C. dermal in origin and made of living cells.
D. dermal in origin and made of dead cells.
Answer : D

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

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

42. Match the epithetial tissue given in column-I with its location given in column-II and choose the correct option.

Column I	Column II
(Epithelial tissue)	(Location)
A. Cuboidal	I. Epidermis of skin
B. Ciliated	II. Inner lining of blood vessels
C. Columnar	III. Inner surface of gall bladder
D. Squamous	IV. Inner lining of fallopian tube
E. Keratinized	V. Lining of pancreatic duct squamous

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

43. 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

44. Choose the correct sequence of alimentary canal of Cockroach
A. Gizzard -> Crop ->?Malphigian tubules ->?Hepatic caeca ->?Rectum.
B. Gizzard -> Hepatic caeca -> Crop -> Rectum -> Malphigian tubules.
C. Crop -> Gizzard ->?Hepatic caeca ->?Malphigian tubules ->?Rectum.
D. Crop -> Hepatic caeca ->?Gizzard -> Rectum -> Malphigian tubules.
Answer : C

45. Which of the following statement is incorrect regarding cuboidal epithelium ?
A. It is an epithelial tissue.
B. It is composed of a single layer of cube-like cells.
C. They are found in the walls of blood vessels and air sacs of lungs.
D. Secretion and absorption are the main functions of these tissue.
Answer : C

46. 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

47. 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 ad 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

48. Which of the following statement(s) is/are correct regarding respiratory system of cockroach ?

1. It consists of a network of trachea, that open through 12 pairs of small holes called spiracles present on the lateral side of the body.
2. Thin branching tubes carry oxygen from the air to all the parts.
3. The opening of the spiracles is regulated by sphincters.
4. Exchange of gases take place at the tracheoles by diffusion.

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

49. 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

50. 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