Q. No.Which of the following mouth parts of cockroach are paired?
1.
Labrum
2.
Labium
3.
Hypopharynx
4.
Maxilla
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Presence of intercalated discs help cardiac muscles to act as a functional syncytium. This is possible because the structure of these discs have:
| 1. | Tight junctions | 2. | Gap junctions |
| 3. | Adhering junctions | 4. | Plasmodesmata |
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Identify the incorrect statement regarding the parts labeled in the following diagram:
1. A is the perimysium
2. B is the structural unit of skeletal muscle
3. C is epimysium
4. D is the endomysium
In the given schematic diagram of ultrastructure of a myofibril, the functional unit of muscle contraction is shown by the letter:
| 1. A | 2. B |
| 3. C | 4. D |
The following histology section depicts the structure of:
|
1. Skeletal muscle |
|
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Which of the following is not true for connective tissue?
1. Cells lie embedded in the matrix
2. Glycosaminoglycans and proteoglycans are present in ground substance
3. All connective tissues are fibrous
4. Connective tissues are derived from the mesenchyme
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Identify the incorrectly matched pair:
|
|
Epithelium |
Location |
|
1. |
Non ciliated simple columnar |
Oviduct |
|
2. |
Simple cuboidal |
Surface of ovary |
|
3. |
Simple squamous |
Peritoneum |
|
4. |
Simple cuboidal brush bordered |
PCT of nephron |
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The main function of adipose tissue is
| 1. | providing insulation from heat and cold |
| 2. | providing protective padding around organs |
| 3. | to be a reserve of lipids |
| 4. | providing feedback for hunger and diet to the brain |
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The following diagram shows the alimentary canal of Periplaneta americana. Identify the incorrectly matched pair:
|
1. |
A |
Storing the food |
|
2. |
B |
Absorption of food |
|
3. |
C |
Secretion of digestive enzymes |
|
4. |
D |
Excretion and osmoregulation |
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Anal styles are borne on the:
| 1. | 9th segment only in female cockroach |
| 2. | 9th segment only in male cockroach |
| 3. | 10th segment only in female cockroach |
| 4. | 10th segment only in male cockroach |
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