Biology Question Bank for Entrance Exams

For AIPMT Main other Medical Entrance Exam Prepration, Question Bank for Biology Morphology of Animals (Cockroach) is given below.

Cockroach show characteristic features in segmentation, symmentry and body organization. Its scientific name is Periplaneta americana.

Morphology – Body is covered with hard chitinous exoskeleton. Size about 25 to 45 mm long cm and 8 to 12 broad found all over the world colour varies. Body is divisible into three regions. Head, thorax, abdomen. Each having segmented appedages to perform various functions.

Anatomy : (Internal structure) Body wall cockroach has three layers. Digestive system complete – hepatic cacae and malpighian tubules present figure blood vascular system. Open type – Heart has 13 units with valved ostia. Haemocoel has two types of cells. Respiratory system is made up of network of branched tracheal tubes through out the body. Terminal branches are called tracheols. Ten pairs of spiracles formed and protected by chitinous bristles. Excretory system has malpighian tubules is haemolymph. Urecotelic animal. Nervous system is made up of paired ganglia, nerve cords and nerves. Nerve-ring is present sense organs are antenae, eyes, maxillary palps, tarsus of walking legs and anal circus. Reproductive system unisexual male slightly bigger. Internal fertilization 14-16 eggs are fertilized in Ootheca vlymphal stage, youngones look alike parents develop into adult by under going ecdytis severl times.

1. Generally Cockroach is ………. or ………. colored insect, however in tropical regions, they havebeen reported to be ………., ………. and ………. colored.

(A) Brown or red, Yellow, Green and White (B) Brown or Black, Yellow, Red and Green

(C) Brown or Yellow, Red, Green and White (D) Red or Yellow, Brown, Green and Black

2. In case of common species of Cockroach, Morphologically which statement is correct ?

(A) The size of female is slightly bigger than male.

(B) In both male and female, numbers of abdominal segments are different.

(C) The size of male and female are equal.

(D) The size of male is slightly bigger than female.

3. Exoskeleton of periplaneta is protected due to ………. .

(A) Calcium carbonate (B) Cutin (C) Chitin (D) Mucous

3. Head of the Cockroach is formed by the fusion of ………. segments.

(A) Six (B) four (C) two (D) eight

4. Why head of the Cockroach can move easily in all the directions ?

(A) In Cockroach head and thorax fuse to form Cephalothorax.

(B) Anatomy of mouthpart, are so arranged that head can move easily in all the directions.

(C) Head is attached to thorax through a flexible neck.

(D) Abdomen of Cockroach is made of three segments.

6. On the head region of Cockroach ………. pairs of ………. and ………. shaped eyes occur.

(A) One pair, sessile compound and kidney shaped

(B) Two pairs, stalked compound and round shaped

(C) Many pairs, sessile simple and kidney shaped

(D) Many pairs, stalked compound and kidney shaped

7. Mouthparts of periplaneta are consist of ……….different types of articulations.

(A) four (B) eight (C) six (D) three

8. On the lateral side of alimentary canal of cockroach ………. glands are found.

(A) Acid secreting (B) Salivary (C) Degestive (D) Reproductive

9. Each walking leg of periplaneta is made up of ……….segments.

(A) five (B) four (C) six (D) nine

10. A segment attached to the ventral side of the thorax nearer to the body of Cockroach is ………. .

(A) Trochanter (B) Femur (C) Coxa (D) Tarsus

11. Walking legs of periplaneta are attached to ………. and divided into ………. segments.

(A) Dorsal tergum, Five (B) Ventral sternum, Five

(C) Dorsal tergum, six (D) Ventral sternum, Six

12. Third segment of walking leg of Cockroach is………. .

(A) Coxa (B) Trochanter (C) Femur (D) Tibia

13. Fifthe segment of walking leg of Cockroach is ………. .

(A) Coxa (B) Tarsus (C) Femur (D) Tibia

14. What is the name of second segment of walking leg of Cockroach ?

(A) Coxa b) Femur (C) Tarsus (D) Trochanter

15. Each abdominal segment of Ccokroach are covered with ………. outer layers ………. plearae.

(A) One, Two (B) Two, Two (C) Two, One (D) One, One

16. Howmany segment are present in an abdomen of the Cockroach ?

(A) Eight (B) Ten (C) Seven (D) Nine

17. In Cockroach which tergum possesses a median groove ?

(A) Tenth (B) First (C) Ninenth (D) Third

18. Which is the peculiarity of ninenth sternum of maleCockroach ?

(A) Anus occurs under it

(B) A piar of anal cerci is associated with it

(C) Seventh and Eighth sternum are covered with it

(D) Male genital openings occurs there

19. Which number of sternum is boatshaped in the Cockroach ?

(A) Fifth (B) Sixth (C) Seventh (D) Tenth

20. In Cockroach which segment has female genital opening ?

(A) Seventh (B) Ninth (C) Tenth (D) Eighth

21. Which segment has male genital opening is Cockroach ?

(A) Ninth (B) Tenth (C) Seventh (D) Eighth

22. Which structure is sound receptor in Cockroach ?

(A) Tarsus (B) Anal cerci (C) Compound eye (D) Walking leg

23. Which segments joint to form a genital pouch in female Cockroach ?

(A) Seventh and Eighth (B) Nineth and Tenth (C) Eighth and Nineth (D) Sixth and Seventh

24. The distal segment of walking leg of a Cockroach is ………. ?

(A) Torchanter (B) Coxa (C) Tibia (D) Tarsus

25. In which succession the three main layers of the body wall of a Cockroach from outer to Inner side are arraged ?

(A) Epidermis, Cuticle and basement membrane

(B) Cuticle, Epidermis and basement membrane

(C) Basement membrane, Cuticle and Epidermis

(D) Epidermis, Basement membrane and Cuticle

26. The Epidermis of body wall of the Cockroach is made up of………. ?

(A) Squamous epithelium (B) Ciliated epithelium

(C) Columnar epithelium (D) Cuboidal epithelium

27. In Cockroach how many stuctures named after malpighian are present ?

(A) One (B) Two (C) Three (D) Four

28. In Cockroach the cavities of foregut and hindgut are lined with ………. .

(A) Salivary glands (B) Gizzard (C) Cuticle (D) Chitinous teeth

29. In the alimentary canal of Cockroach the shape of region following the mouth is ………. .

(A) Folded (B) Swollen bag like (C) Norrow tubular(D) Thin fibriller

30. How many secreting lobes are present in each salivary gland of Cockroach ?

(A) Two (B) Two pairs (C) Three (D) Six

31. In Cockroch ………. on salivary glands and ………. reservoirs are present ?

(A) Two, One (B) One, Two (C) Two, Four (D) Three, Two

32. Crop of the Cockroach occurs at ………. in almentary canal.

(A) Posterior end of oesophagus (B) Near midgut

(C) Posterior end of pharynx (D) At the juction of midgut and hindgut.

33. In which of the following regions crop of the Cockroach is located ?

(A) Thorax (B) Abdomen

(C) Thorax and abdomen (D) Through out the gut

34. In Cockroach, gizzard is ………. organ and ………. occur inside it.

(A) Glandular, six dentin teeth (B) Muscular, six chitinous teeth

(C) Muscular, four chitinous teeth (D) Glandular, six chitinous teeth

35. Where are sieve like structures present in the alimentary canal of Cockroach ?

(A) Anterior end of gizzard (B) In hepatic cacae

(C) Posterior end of crop (D) Posterior end of gizzard

36. Where are eight blind hepatic caeca present in Cockroach ?

(A) With crop (B) At the juction of midgut and hindgut

(C) at the midgut (D) at the foregut.

37. Malpigian tubules in Cockroach are………. organs.

(A) Digestive (B) Secretory (C) Excretory (D) Respiratory

38. In Cockroach malpighian tubules open in ………. .

(A) At the junction of midgut and hindgut. (B) At the end of hindgut.

(C) Near rectum (D) At the posterior end of gizzard.

39. In Cockroach, morphologically rectum is………. shaped and ………. from inside.

(A) Tubular, bag like (B) Bag like, folded (C) Folded, baglike (D) Villi, baglike

40. In Cockroach, colon is presnet at the posterior region of ………. .

(A) Foregut (B) Hindgut (C) Hepatic caecae (D) Gizzard

41. Cockroach is ………. animal.

(A) Herbivorous (B) Insectivorous (C) Omnivorous (D) Carnivorous

42. Cockroach searches its food with the help of………. .

(A) Walking legs (B) Mandibles (C) Eye (D) Antennae

43. In alimentary canal of Cockroach ………. cells of midgut and hepatic caeca secrete enzymes.

(A) Columnar (B) Cuboidal (C) Ciliated (D) Striated

44. The haemolymph of Cockroach is mostly composed of ………. and ………. .

(A) Haemoglobin and blood cells. (B) Plasma and uncertain shaped cells.

(C) Haemocynin and plasma. (D) Plasma and certain shaped cells.

45. The heart of Cockroach is made up of ………. units.

(A) Thirteen (B) Ten (C) Twelve (D) Four

46. Name the small cells of haemolymph of Cockroach ?

(A) Phagocytes (B) Proleucocytes (C) Enocytes (D) Excretory

47. Blood from sinuses enters in the heart of Cockroch through ………. .

(A) Artery (B) Vein (C) Arteriole (D) Ostia

48. ………. numbers of Ostia are present at the posterior end of heart of Cockroach ?

(A) One (B) Two (C) Three (D) Ten

49. Which is the path of blood circulation in Cockroach ?

(A) Heart – artery – organs – heart (B) Heart – sinuses – heart

(C) Sinuses – artery – organs – vein – heart (D) Heart – artery – heart

50. Total howmany spiracles occur in Cockroach ?

(A) Ten (B) Twenty (C) Thirteen (D) Twenty six

51. In Cockroach how many spiracles are present in thoracic region and howmany spiracles are present in abdominal region ?

(A) Two pairs and eight pairs (B) Two and eight

(C) Eight pairs and two pairs (D) Eight and two

52. The walls of spiracles are framed from ………. .

(A) Blood vessels (B) Tissue fluid (C) Chitinous Bristles (D) Ostia

53. In respiratory system of Cockroach ………. function as filters.

(A) Spiracles (B) Chitinous bristles (C) Ostia (D) Tracheoles

54. Main excretory units in Cockroach are ……….. .

(A) A pair of kidney (B) Haemolymph (C) Chitinous bristles (D) Malpighian tubules

55. Write location and numbers of malpighian tubules in periplaneta.

(A) At the junction of midgut and hindgut, about 150.

(B) At the junction of foregut and midgut, about 150.

(C) Surrounding gizzard, eight.

(D) At the junction of colon and rectum, eight.

56. In Cockroch colour of malpighian tubules is ………. and their ………. end is blind.

(A) Green, anterior (B) Green, posterior

(C) Yellow, anterior (D) Yellow, free (distal)

57. In Cockroach wall of each malpighian tubule is lined by ……….and ……….cells.

(A) Secretory and non-ciliated surface (B) Glandular and ciliated

(C) Squamous and smooth surfaced (D) Striated and ciliated

58. Which of the following is the function of malpighian tubules of Cockraoch ?

(A) Absorption of waste from haemolymph and convert them into uric acid.

(B) Removes CO2

(C) Store solid excretory material

(D) Reabsorption of water from the hindgut.

59. In Cockroach by which process malpighian tubules absorb waste from the haemocoel ?

(A) Osmosis (B) Endosmosis (C) Diffusion (D) Exosmosis

60. In Cockroach waste products collected is malpighian tubules will first enter in ………. .

(A) Gizzard (B) Hepatic caeca (C) Haemocoel (D) Hindgut

61. With reference to excretion, Cockroach is ………. animal.

(A) Ammonotelic (B) Uricotelic

(C) Ureotelic (D) Ammonia and uricotelic

62. Out of following which ganglia unite to from nervering in nervous system of Cockroach ?

(A) Suboesophageal, supraesophegeal and circum oesophageal commisures unite to form nervering.

(B) Three ganglia in thorax region and six ganglia of abdominal region unite to form nervering.

(C) Three pairs of ganglia in thorax region and six pairs in abdominal regions.

(D) Three pairs supraoesophageal and one pair suboesophageal ganglia unit to form nervering.

63. In Cockroach ………. ganglia innervate the mouth pairs.

(A) Supraoesophageal (B) Suboesophageal

(C) Circumoesophageal (D) Three ganglia of thorax region

64. How many ganglia are present in abdominal region of Cockroach ?

(A) 3 pairs (B) 6 pairs (C) 4 pairs (D) 8 pairs

65. Which of the following is a group of senseorgans in Cockroach ?

(A) Antennae, eyes, maxillary palps, anal cerci

(B) Antennae, compound aye, maxillary palps

(C) Antennae, ommatidia, maxillary palps, sternum

(D) Antennae, eyes, maxillary palps, tarsus of walking legs and cerci.

66. Which is the coorect word for vision of Cockroach ?

(A) Three dimentional (B) Two dimentional

(C) Mosaic (D) Cockroach donot have vision

67. ………. is the accessory reproductive gland with testis in male Cockroch.

(A) Chitinous gonapophysis (B) Ejaculatory duct

(C) Vas deferens (D) Mashroom shaped gland

68. In male Cockroach the sperms stored in seminal vesicles form ………. .

(A) Spermatophores (B) Zygote (C) Testis (D) Ejaculatoryduct

69. In male Cockroach testes are present in ………. segments of abdomen while mushroom glands occurs in ………. segments.

(A) 4 to 6, 5 to 6 (B) 4 to 6, 6 to 7

(C) 5 to 6, 4 to 6 (D) 6 to 7, 4 to 6

70. Sperms from the spermatophores in male Cockroach are discharged during ………. .

(A) Fertilization (B) Meiotic division (C) Copulation (D) Spermatogenesis

71. In each ovary of female Cockroach the most developed ova are placed at ………. .

(A) Anywhere is ovarian tubules (B) At the origin of ovarian tubules

(C) In the innerlayer of ovary (D) At the distal free end of ovarian tubule

72. During copulation, in female Cockroach ovum comes in the ………. which is present in ………. cockroach.

(A) Ejaculatory duct is male (B) Ovarian tubule is female

(C) Genital chamber in female (D) Genital chamber is male

73. Fertilization occurs in Cockroach in ………. .

(A) Ovary (B) Ovarian tubule (C) Genital chamber (D) Ootheca

74. Cockroach is a ………. animal and development is ………. .

(A) Viviparous, direct (B) Oviparous, direct

(C) Oviparous, indirect (D) Ovoviviparous, direct

75. Ootheca of Cockroach has ………. eggs which are ………. .

(A) 14 to 16, fertilized (B) 12 to 14, fertilized

(C) 14 to 16 unfertilized (D) 12 to 14 unfertilized

76. The nymph of Cockroach grows into an adult Cockroach by moulting ………. times.

(A) 10 to 12 (B) 6 to 7 (C) 8 to 10 (D) 14 to 16

77. Howmany abdominal segments are present in male and female Cockroach ? (Kerala PMT 2008)

(A) 10, 10 (B) 9, 10 (C) 8, 10 (D) 9, 9

78. Excretory matter of Cockroach is mainly ………. . (UP, PMT 2009)

(A) Uric acid (B) Urea (C) Ammonia (D) Amino acid

79. Which animal secrete uric acid ? (AIPMT 2009)

(A) Frog (B) Man (C) Earthworm (D) Cockroach

80. Which statement is true for Cockroach ? (NCERT)

(A) Ten ovirioles in ovary (B) Nymph is catterpillar form

(C) Anal cerci are absent in female animal (D) It is ureatelic animal

81. Which is the correct option is case of Cockroch in following column A and B ?


(P) Mouth parts of Cockroach (i) Anal cerci

(Q) Segments of walking leg (ii) Malpighian tubule

(R) Sound receptor structure (iii) Mandibles, maxillae

(S) Excretory unit (iv) Coxa, trochanter

(A) P, Q, R, S = i, ii, iii, iv (B) P, Q, R, S = iii, iv, ii, i

(C) P, Q, R, S = iii, iv, i, ii (D) P, Q, R, S = iv, iii, i, ii

82. Select the correct option from following columns is case of Cockroach ?

(p) Gizzard (i) Sound receptor

(q) Rectum (ii) Chitin

(r) Anal cerci (iii) Cuticle

(s) Foregut and midgut (iv) 10th tergum

(A) p, q, r, s, = i, iii, ii,iv (B) p, q, r, s = ii, iv, i, iii

(C) p, q, r, s = i, iv, iii, ii (D) p, q, r, s = i, ii, iii, iv

* Answer following questions by selecting correct S and R from given options.

S – Statement, R – Reason

Option for Question number 83 to 90

(A) S – correct, R – Incorrect, R is explaination of S.

(B) Both S and R correct but R is not a explaination of S.

(C) S – correct, R – incorrect

(D) S-incorrect, R – correct

83. S : Ootheca is formed in female Cockroach by the group of fertile eggs.

R : Nymph of Cockroach grows with adult by undergoing moulting process several times.

84. S : Each eye of Cockroach consist of 2000 ommatidia.

R : Vision of Cockroach is known as mosaic vision.

85. S : In Cockroach nine pairs of spiracles occur.

R : Walls of spiracles are framed from chitinous bristles.

AIPMT Question Bank Biology - Morphology of Animals (Cockroach)

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