| List I | List II |
| A. Skull | I. 30 |
| B. Vertebral column | II. 24 |
| C. Ribs | III. 22 |
| D. Forelimbs | IV. 26 |
| List I | List II |
| A. Rheumatoid arthritis | I. Thickening of the arteries |
| B. Atherosclerosis | II. Inflammation of synovial membrane |
| C. Gout | III. Pain in the chest |
| D. Angina pectoris | IV. Accumulation of uric acid crystals in synovial joints |
| A. | Increase in Ca++ concentration level leads to the binding of calcium with a subunit of troponin on actin filaments. and thereby removes the masking of active sites for myosin. |
| B. | During the shortening of the muscle, A-bands get reduced, whereas, the I-bands retain the length. |
| C. | A muscle fibre is a syncytium. |
| D. | Isotropic band of a myofibril consists of myosin. |
| A. | Locomotion requires a perfectly coordinated activity of the muscular and skeletal system only. |
| B. | Macrophages as well as erythrocytes in blood move using pseudopodia formed by the streaming of protoplasm. |
| C. | Movement of tongue uses contractile property of muscles. |
| D. | Methods of locomotion performed by animals vary with their habitats and the demand of the situation. |
| List I | List II |
| A. Tetany | I. Decreased levels of estrogen |
| B. Muscular dystrophy | II. Autoimmune disorder |
| C. Myasthenia | III. Genetic disorder |
| D. Osteoporosis | IV. Rapid spasms in muscle |
| a. | Sarcoplasmic reticulum of the muscle fibres is the storehouse of calcium ions. |
| b. | The type of muscles present in our thigh are striated and voluntary. |
| c. | The H-zone in the skeletal muscle fibre is due to the central gap between myosin filaments in the A-band. |
| d. | Production of body heat and storage of minerals are the functions of the skeletal system. |
| Column-I | Column -II | ||
| a. | I-band | (i) | Contains both thin and thick filaments |
| b. | A-band | (ii) | Elastic fibre that bisects I-band |
| c. | M-line | (iii) | Contains thin filaments |
| d. | Z-line | (iv) | Thin fibrous membrane |
| (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 |