Q. No.Which of the following movements can be seen in a human body?
| I. Amoeboid | II. Ciliary | III. Flagellar |
| 1. | I and II only | 2. | I and III only |
| 3. | II and III only | 4. | I, II and III |
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Skeletal muscles are:
1. Striated, Multinucleate and Voluntary
2. Non-Striated, Multinucleate and Voluntary
3. Striated, Multinucleate and Involuntary
4. Non-Striated, Uni-nucleate and Voluntary
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With respect to the red muscle fibers [Type I], the white muscle fibers [Type II] are richer in:
| 1. | Blood capillaries | 2. | Myoglobin |
| 3. | Sarcoplasmic reticulum | 4. | Mitochondria |
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The smallest, functional unit of contraction is the:
| 1. | muscle fiber | 2. | sarcomere |
| 3. | myofilament | 4. | myofibril |
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During muscle contraction, the part that does not get shortened in length is labeled as the letter:
| 1. A | 2. B |
| 3. C | 4. D |
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A motor neuron along with all the muscle fibers innervated by it constitute a:
| 1. Fascicle | 2. Motor end plate |
| 3. Motor unit | 4. Myoneural junction |
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Consider the following statements:
I. The head of myosin is made of LMM and the tail is made of HMM
II. F Actin is monomeric while G actin is polymeric
III. Tropomyosin is composed of three globular proteins
The incorrect statements are:
| 1. I and II only | 2. I and III only |
| 3. II and III only | 4. I, II and III |
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| A | B | C | D | |
| 1. | I band | A band | H zone | M line |
| 2. | I band | H zone | M line | Z line |
| 3. | A band | I band | Z line | M line |
| 4. | H zone | I band | M line | Z line |
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As the distance from Z line to Z line decreases, which bands shorten in a sarcomere?
| 1. | the I band and H band | 2. | the I band and A band |
| 3. | the A band and H band | 4. | all bands shorten |
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