Q. No.Communication junctions found at some fusion points that allow the cardiac muscle cells to contract as a unit are called as:
1. Intercalated discs
2. Sarcolemma
3. Nodes of Ranvier
4. Motor end plates
1. Intercalated discs
2. Sarcolemma
3. Nodes of Ranvier
4. Motor end plates
Match the following with reference to cockroach and choose the correct option:
| A. | Phallomere | i. | Chain of developing ova |
| B. | Gonopore | ii. | Bundles of sperm |
| C. | Spermatophore | iii. | Opening of the ejaculatory duct |
| D. | Ovarioles | iv. | The external genitalia |
| A | B | C | D | |
| 1. | iii | iv | ii | i |
| 2. | iv | iii | ii | i |
| 3. | iv | ii | iii | i |
| 4. | ii | iv | iii | i |
A sheath of dense irregular connective tissue that groups muscle fibres into bundles or fascicles is called as:
| 1. | Epimysium | 2. | Perimysium |
| 3. | Endomysium | 4. | Aponeurosis |
In male cockroaches, the genital pouch is bounded by:
| 1. | 9th and 10th terga dorsally and 10th sternum ventrally |
| 2. | 9th tergum dorsally and 9th and 10th sterna ventrally |
| 3. | 9th and 10th terga dorsally and 9th sternum ventrally |
| 4. | 9th and 10th terga dorsally and 9th and 10th sterna ventrally |
The genital pouch in female cockroach is formed by:
1. 7th, 8th and 9th tergites
2. 7th, 8th and 9th sternites
3. 8th, 9th and 10th tergites
4. 8th, 9th and 10th sternites
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:
2. Single unit smooth muscle
3. Multi unit smooth muscle
4. Cardiac muscle
All the following are termed as specialized connective tissue except:
| 1. | Blood | 2. | Tendon |
| 3. | Bone | 4. | Cartilage |
Tendons attach:
1. Skeletal muscle to bone
2. Bone to bone
3. Muscle to muscle
4. Smooth muscle to bone
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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