Pre-Medical

COCKROACH EXERCISE
1. Zoological name of cockroach is : [BH U - 7 9 ] 11. Head of cockroach according to its position is known
(1) Glossina palpalis as : [A IP M T - 8 9]

(2) Periplaneta americana (1) Hypopharynx (2) Hypocyrebral

(3) Musca nebulo (3) Hypognathus (4) Supragnathus
(4) Apis indica 12. Number of sternum present at the abdomen of
female cockroach is : [R P M T - 8 6 ]
2. Diagonistic feature of insects is : [C P M T - 9 0 ]

(1) Segmented body (1) 6 (2) 7

(2) Chitin in body wall (3) 8 (4) 9

(3) Three pair of legs 13. Tongue like structure in Periplaneta is :
(4) One pair compound eyes [R P M T - 8 6 ]

3. Which are the two common indian cockroaches ? (1) Maxilla (2) Hypopharynx
[C P M T - 8 4 ] (3) Labium (4) Labrum
(1) Periplaneta americana and Blatta indica
14. Which structure is known as lower lip of cockroach ?
(2) Periplaneta indica and Blatta orientalis
[R M P T - 8 4]
(3) Periplaneta orientalis and Blatta americana
(1) Labrum (2) Labium
(4) Periplaneta americana and Blatta orientalis
(3) Mantum (4) Submentum
4. Characteristic of group insecta is : [C P M T - 8 8 ]
15. Wings of cockroach are mainly helpful in :
(1) Joined appendages (2) 3 pair of jointed legs
[C P M T - 8 1 ]
(3) Chitinous exoskeleton (4) Compound eyes
(1) Egg laying (2) Preying
5. Scientist who gave the name Periplaneta is : (3) Finding the mate (4) Protecting against
(1) Linneous (2) K.N. Bahel
(3) Bermister (4) D. Gir [R M P T - 9 0]
16. Periplaneta americana differs from Blata orientalis
in : [C P M T - 9 1 ]
6. Tergum is joined on the sides by : [A FM C - 8 0 ] (1) Well developed wings
(1) Pleuron (2) Sternum (2) Wings absent
(3) Alimentary canal (4) Muscles (3) Only first pair wings developed
7. The plate situated between the eyes and passing (4) Second pair wing developed
below that on the head of cockroach is called :
17. Number of segments in cockroach leg :
(1) Vertex (2) Fron [BH U - 7 9 ]
(1) 3 (2) 5 [A FM C - 7 9 ]
(3) Epicranium (4) Gena
(3) 6 (4) 9
8. The dorsal plate of skeleton found on the abdomen
of cockroach is called : [A FM C - 7 8 ] 18. Undeveloped wings are found in : [C P M T - 77]
(1) Housefly (2) Cockroach
(1) Pleuron (2) Sternum
(3) Tergum (4) Vertex (3) Mosquito (4) Blatta

9. Outer border of tergum bends downwards in 19. Pseudopodia of Amoeba are similar to :
cockroach and attaches with : [A FM C - 8 0 ] [C P M T - 8 4 ]

(1) Muscles (2) Sternum (1) Legs of cockroach (2) Teeth in rabbit
(3) Pleura (4) Fat body cells (3) Spicules of Neucosolenia (4) Suckers of Taenia

10. Mandibles of cockroach are : [C P M T - 8 4 ] 20. Plantulae are found in cockroach upon :
(1) Short with grinding teeth (2) Long and pointed (1) Pretarsus (2) Femur [C P M T - 8 6 ]

(3) short without teeth (4) long and coiled (3) Trochanter (4) Coxa

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21. Most swollen segment in leg cockroach is : 32. The body cavity of cockroach is called :
(1) Tarsus (2) Coxa [C P M T - 86] [N CER T - 7 5 ]

(3) Femur (4) Trochanter (1) Pseudocoel (2) Coelom

(3) Hydrocoel (4) Haemocoel
22. In cockroach arolium is helpful in : [R P M T - 8 9 ]

(1) In digestion (2) Respiration 33. Which cells secretes wax located at the outer surface
(3) Locomotion (4) Reproduction of body wall ? [RP MT 8 6 , AIP M T 8 3 ]

(1) Trophocytes (2) Oenocytes

23. Main character for the distinction between male
(3) Trichogen (4) Mycetocytes
and female cockroach : [CP M T - 7 9 , BH U - 7 7 ]

(1) Antennae (2) Mandibles 34. The fatbody of cockroach contains :[CPMT - 94]

(3) Anal cerci (4) Anal style (1) Oenocytes (2) mycetocytes
(3) Trophocytes (4) All the above
24. Anal styles are found in : [C P M T - 7 8 ]

(1) Housefly 35. Hepatic caeca in cockroach are derived from :

(2) Female cockroach (1) Crop (2) Gizzard [AF MC- 81 ]

(3) Male cockroach (3) Midgut (4) Proctodaeum

(4) Both male & female cockroach
36. Saliva of cockroach contains enzyme :[BHU - 79]

25. Body segments are definite and well marked in : (1) Lipase (2) Amylase
(1) Hydra (2) Taenia [C P M T - 7 4 ] (3) Pepsin (4) Trypsin
(3) Earth worm (4) Cockroach
37. Salivary glands of cockroach open on :
26. In cockroach the audioreceptors are situated on : [C P M T - 7 8 ]
[R P M T - 8 7 ]
(1) Maxilla (2) Hypopharynx
(1) On legs (2) Antenna
(3) Labium (4) Labrum
(3) Sensory receptor (4) Anal cerci
38. Mouth part of cockroach are suited for :
27. The gynovalvular plates in female cockroach are
[CP M T - 7 2 , 7 4 ]
modification of : [R P M T - 8 6 ]
(1) Piercing (2) Absorbing
(1) 7th tergum (2) 7th sternum
(3) Cutting & chewing (4) Drinking
(3) 8th Tergum (4) 8 sternum
39. Cockroach is : [N CER T - 7 1 ]
28. Stink glands are found in : [UP P MT - 9 4 ]
(1) Omnivorous (2) Herbivorous
(1) Only in males (2) Only in female
(3) Carnivorous (4) Sanguivorous
(3) In both (4) None
40. An animal which feeds upon organic matter, dead
29. Exoskeleton of cockroach is made up of :
insects and own cost off cuticle may be ?
(1) Cartilage (2) Cuticle [BH U - 8 0 ]
[C P M T - 8 4 ]
(3) Chitin (4) Amino acids
(1) Herbivorous (2) Scavenger
30. Cockroach and other insects have exoskeleton (3) Omnivorous (4) Carnivorous
made up of : [BHU - 8 0 , BSE - 88 ]
41. In cockroach food is crushed in which part :
(1) Keratin (2) Spongin
(1) Crop (2) Gizzard [ CP M T - 8 4 ]
(3) Chitin (4) Cuticle
(3) Mesenteron (4) Oesophagus
31. in which part of cockroach is present completely
developed endoskeleton and exoskeleton both ? 42. In which part of alimentary canal of cockroach is
invagination of cuticle found ? [R P M T - 9 5 ]
[R P M T - 9 5 ]
(1) Anterior part (2) In midpart
(1) In head region (2) Thoracic region
(3) In posterior part
(3) Abdominal region (4) In all regions
(4) Both in antherior and posterior part

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43. Maximum digestion takes place in which part of 52. Blood circulation in insects : [N CER T - 7 7 ]
cockroach ? [C P M T - 9 3 ] (1) Flows in arteries and veins
(1) In crop (2) In Gizzard (2) With red blood corpuscles
(3) In mesenteron (4) In oesophagous (3) Open type (4) Absent
44. Oxygen is carried to the tissues of cockroach by 53. Heart of cockroach is : [BH U - 8 1 ]
which organ : [C P M T - 8 2 ]
(1) Four chamberd
(1) Skin (2) Trachea (2) Vertral to gut
(3) Plasma (4) Respiratory pigment (3) Longitudinal and beaded
45. What is common between the trachea of rabbit and (4) Three chambered
cockroach ? [CP M T - 8 1 , 7 7 ]
54. The colour of haemolyph of cockroach is :
(1) Both start in head region
(1) Yellow (2) Red [R P M T - 9 3 ]
(2) Both are filled with fluid (3) Green (4) Colourless
(3) Wall in both is strengthened which does not allow
to collapse 55. Physiologically the heart of cockroach is :
(1) Neurogenic (2) myogenic
(4) None of them
(3) Epigenic (4) Agenic [RPM T - 8 0]
46. Allary muscles in cockroach are associated or
56. Main excretory product of cockroach is :
connected with : [CP M T- 7 7 , BH U 7 9 ]
[A FM C - 7 8 ]
(1) Trachea (2) heart
(1) Urea (2) Ammonia
(3) legs (4) alimentary canal
(3) Uric acid (4) Amino acid
47. Number of pairs of spiracles in cockroach are :
(1) 4 (2) 6 [C P M T - 8 4 ] 57. Function of Malpighian tubules of cockroach :
[CPM T - 7 8 , 7 2 , AIFM S - 8 1 , N CE RT - 7 3 ]
(3) 8 (4) 10
(1) Digestion (2) Respiration
48. In cockroach O2 is carried to tissue by :
(3) Excretion (4) Reproduction
(1) Haemoglobin and haemocyanin [C BS E - 8 8 ]
(2) Blood plasma 58. Exeretory organs of cockroach are :
(3) Tracheal tubes [CP M T - 75 , 7 6 8 2 , BHU 7 7, 78 ]

(4) Diffusion through integument (1) Trachea (2) Kidney

(3) Nephridia (4) Malpighian tubules
49. Blood of cockroach does not contain haemoglobin
because : [C P M T - 8 0 ] 59. The nerve cord of cockroach is : [C P M T - 8 7 ]

(1) It respires through atmosphere (1) Double, ventral and solid

(2) Respires through book lungs (2) Double dorsal and hollow
(3) It does not respire (3) Single, dorsal and solid
(4) It has some other means to carry oxygen direct
(4) Single, ventral and hollow
into the tissues
60. In cockroach which is helpful in sexual attraction ?
50. Give the name of blood vessel, which arises from
[R P M T - 9 0 ]
first chamber of heart in cockroach :[CPMT - 77]
(1) Hormone ecdyson (2) Pheromone
(1) Nephrocyte (2) Fenestrae
(3) Juvenile hormone (4) Anal cerci
(3) Ostia (4) Anterior aorta
61. Ommatida are found in : [BH U - 8 0 ]
51. Number of chambers in the heart of cockroach :
(1) Eyes of birds (2) Eye of frog
(1) 5 (2) 9 [CP M T - 7 6 , 8 1 ]
(3) Eye of insects (4) Eye of rabbit
(3) 13 (4) 16

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62. Structural units found in the compound eye of (3) Male cockroach (4) Female cockroach
cockroach are called : [CP M T - 8 0 , 7 6 ]
73. Number of moultings in cockroach after hatching
(1) Rhabdom (2) Cone cells and development of complete animal are :
(3) Ommatidia (4) Simple eye (1) Less than 7 (2) Upto 8 [B HU - 7 9 ]

(3) Upto 9 (4) more than 10

63. What type of vision is found in cockroach ?
[CP M T - 7 7, B HU - 7 9 ] 74. How many ovarioles are found in each overy of
(1) Mosaic (2) Super position cockroach ? [C P M T - 8 5 ]

(1) 3 (2) 6
(2) Binocular (4) None of them
(3) 8 (4) 16
64. Ommatidia are units in the eyes of : [BH U - 8 0 ]
75. Collaterial glands of cockroach help in :
(1) Amphibians (2) Mammals
(1) Fertilization
(3) Insects (4) Fishes
(2) Formation of ootheca
65. Apposition image in eye of insects is formed in : (3) Copulation [C P M T - 8 6 ]

(1) Dim light (2) Bright Light (4) Formation of oothecal chamber
(3) ocelli (4) None [C P M T - 8 8 ] 76. In the life history of cockroach (Periplaneta) There
is : [C P M T - 9 0 ]
66. Eggs which have yolk in the centre surrounded by
cytoplasm are called : [BH U - 8 2 ]
(1) No Metamorphosis
(2) Incomplete metamorphosis
(1) Centrolecithal (2) Homolecithal
(3) Complete metamorphosis
(3) Microlecithal (4) Alecithal
(4) Anamorphosis
67. Ootheca is formed in cockroach by :[CPMT - 80]
77. Juvenile of cockroach is known as : [R P M T - 9 5 ]
(1) Phallic Gland (2) Conglobate gland
(1) Tadepole (2) Amocyte
(3) Utricular gland (4) Collateral Gland (3) Nymph (4) Naid
68. Ootheca of Cockroach has fertilized eggs, this 78. Life time of cockroach in general is : [BH U - 9 4 ]
numbers is : [CM P T - 8 1 , 8 6 ] (1) Approximately 1 year
(1) 6 (2) 8 (2) 3 to 3.5 years approx
(3) 16 (4) 24 (3) 5 to 7.5 years approx
(4) 10 years approx
69. From egg laying to the development of adult
cockroach. How many moluting occur ? [ B H U - 7 9 ] 79. In which of the following moulting is not found ?
(1) 10-12 times (2) 9 times [C P M T - 7 7 ]

(3) 6 times (4) 3-4 times (1) Hydra (2) Mosquito

(3) Housefly (4) Cockroach
70. The type of egg in cockroach is called :
[C P M T - 7 5 ] 80. Life history of cockroach represents :[CPMT - 70]

(1) Microlecithal (2) Centrolecithal (1) Ametaboly (2) Holometaboly

(3) Isolecithal (4) Telolecithal (3) Paurometaboly (4) None

71. Sexual dimorphism is distinct in : [C P M T - 7 4 ] 81. Common feature between cockroach and
earthworm is : [C P M T - 8 4 ]
(1) Hydra (2) Earthworm
(1) Hermaphroditism
(3) Sponge (4) Cockroach
(2) Moulting of cuticle
72. Conglobate gland is found in the reproductive (3) Excretion by nephridia
organs of : [C P M T - 7 3 ]
(4) Ventral nerve cord
(1) Earth worm (2) Housefly

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82. Which has no skeleton ? [C P M T - 8 8 ] 83. Cockroach is : [C P M T - 9 3 ]

(1) Cockroach (2) Mosquito (1) Nocturnal and omnivorous

(3) Butterfly (4) Jelly fish (2) Diurinal and omnivorous
(3) Nocturnal and carnivorous
(4) None

COCKROACH ANSWER KEY

Que. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Ans. 2 3 4 2 3 1 2 3 3 1 3 2 2 2 4
Que. 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Ans. 1 2 4 1 1 2 3 4 3 4 4 2 3 3 3
Que. 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
Ans. 1 4 2 4 3 2 3 3 1 2 2 4 1 2 3
Que. 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60
Ans. 2 4 3 4 4 3 3 3 4 1 3 3 4 1 2
Que. 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
Ans. 3 3 1 3 2 1 4 3 1 2 4 3 4 3 2
Que. 76 77 78 79 80 81 82 83
Ans. 2 3 2 1 3 4 4 1

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