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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
ATPase activity is found in:
1. | Myosin head | 2. | Myosin tail |
3. | G-Actin | 4. | Troponin |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The smallest, functional unit of contraction is the:
1. | muscle fiber | 2. | sarcomere |
3. | myofilament | 4. | myofibril |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.