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Q. No.Consider the given statements:
Statement I:
Each thoracic segment in cockroach bears a pair of walking legs.
Statement II:
The first pair of wings arises from prothorax and they are called as tegmina.
1. Only Statement I is correct
2. Only Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Subtopic: Cockroach: Structure of Thorax |
74%
Level 2: 60%+
Hints
Consider the given statements:
| I: | The crop in the alimentary canal of cockroach is also known as proventriculus, has six highly chitinous plates called teeth and helps in grinding food particles. |
| II: | The gizzard is sac-like structure used for storing food in cockroach. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Cockroach: Digestive System |
65%
Level 2: 60%+
Hints
Consider the given statements:
| I: | Malpighian tubules are used in osmoregulation and excretion in cockroach. |
| II: | Malpighian tubules are present at the junction of the midgut and the hindgut in the alimentary canal of cockroach. |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
Subtopic: Cockroach: Excretory System |
85%
Level 1: 80%+
Hints
Which of the following is not true about the blood vascular system of cockroach?
| 1. | It is of open type. |
| 2. | It delivers oxygen to the tissues. |
| 3. | Heart lies along the mid dorsal line of thorax and abdomen. |
| 4. | The haemolymph is composed of colourless plasma and haemocytes. |
Subtopic: Cockroach: Circulatory System |
64%
Level 2: 60%+
Hints
In cockroach:
| I: | Malpighian tubules are lined by glandular and ciliated cells. |
| II: | Uric acid is the nitrogenous metabolic excretory product. |
| III: | Fat body, nephrocytes and urecose glands also help in excretion. |
| 1. | Only II is correct |
| 2. | Only I and II are correct |
| 3. | Only II and III are correct |
| 4. | I, II and III are correct |
Subtopic: Cockroach: Excretory System |
87%
Level 1: 80%+
Hints
In cockroach:
1. Only II is correct
2. Only I is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | the head is represented by sub-oesophageal ganglion. |
| II: | the nerve cord is located on the dorsal side of the body. |
2. Only I is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Cockroach: Head & Mouth Parts |
Level 3: 35%-60%
Hints
Consider the given two statements:
| I: | The vision in cockroach can be best described as a mosaic vision. |
| II: | This is a nocturnal vision with more sensitivity but less resolution. |
1. Both I and II are correct and II explains I
2. Both I and II are correct but II does not explain I
3. Both I and II are incorrect
4. II is incorrect and I is correct
Subtopic: Cockroach: Compound Eye |
Level 3: 35%-60%
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The development of Periplaneta americana is:
| 1. | Paurometabolous with nymph moulting about 13 times to reach the adult form and the next to last nymphal stage has wing pads. |
| 2. | Paurometabolous with nymph moulting about 13 times to reach the adult form and the next to last nymphal stage has wings. |
| 3. | Holometabolous with nymph moulting about 13 times to reach the adult form and the next to last nymphal stage has wing pads. |
| 4. | Holometabolous with nymph moulting about 13 times to reach the adult form and the next to last nymphal stage has wings. |
Subtopic: Cockroach: Female Reproductive System |
77%
Level 2: 60%+
Hints
Consider the given statements:
1. Only Statement I is correct
2. Only Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
| Statement I: | The head of cockroach is at right angle to the longitudinal body axis. |
| Statement II: | The head of cockroach is formed by the fusion of six segments. |
1. Only Statement I is correct
2. Only Statement II is correct
3. Both Statement I and Statement II are correct
4. Both Statement I and Statement II are incorrect
Subtopic: Cockroach: Head & Mouth Parts |
91%
Level 1: 80%+
Hints
Compound epithelium is found at all the following locations except:
| 1. | dry surface of the skin |
| 2. | moist surface of buccal cavity |
| 3. | inner lining of ducts of salivary glands and pancreatic ducts |
| 4. | lining of stomach and small intestine |
Subtopic: Compound & Specialised Epithelium |
72%
Level 2: 60%+
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