Cells of human body exhibit three main types of movements. Cytoskeleton elements called microfilaments play an important role in:
A. Amoeboid movements
B. Ciliary movements
C. Muscular movements
1. | Only A | 2. | Only A and B |
3. | Only A and C | 4. | A, B and C |
(a) | Locomotion, changes of body postures and heat production are some of the functions of skeletal muscle tissue |
(b) | Actin filaments are firmly attached to the Z-line |
(c) | The portion of myofibril between non-consecutive 'Z' lines is called sacromere |
(d) | Muscles constitute more than 50% of the body weight in an adult human |
a | b | c | d | |
1. | T | T | T | T |
2. | T | F | F | T |
3. | T | T | F | F |
4. | F | T | T | T |