MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Actin filaments are thicker than myosin filaments. True or false? |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of these statements is false regarding myofibrils? |
| A. | The A band is also known as the light band |
| B. | Myosin is parallel to the longitudinal axis of myofibril |
| C. | Light bands contain actin |
| D. | Anisotropic bands contain myosin |
| Answer» B. Myosin is parallel to the longitudinal axis of myofibril | |
| 3. |
What does the A band of a myofibril contain? |
| A. | Troponin |
| B. | Actin |
| C. | Myosin |
| D. | Tropomyosin |
| Answer» D. Tropomyosin | |
| 4. |
Which of these structures has alternate dark and light bands on it? |
| A. | Fascicles |
| B. | Sarcolemma |
| C. | Myofibrils |
| D. | Fascia |
| Answer» D. Fascia | |
| 5. |
Which of these ions are abundant in the sarcoplasmic reticulum? |
| A. | Magnesium |
| B. | Sodium |
| C. | Potassium |
| D. | Calcium |
| Answer» E. | |
| 6. |
A muscle fibre is a syncytium. True or false? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Identify the structure shown in the figure. |
| A. | Fascia |
| B. | Muscle fibre |
| C. | Sarcolemma |
| D. | Fascicle |
| Answer» E. | |
| 8. |
What is fascia made of? |
| A. | Collagen |
| B. | Keratin |
| C. | Microtubules |
| D. | Muscle fibres |
| Answer» B. Keratin | |
| 9. |
Which of these is not a characteristic of cardiac muscles? |
| A. | They work continuously |
| B. | They are branched |
| C. | They are not striated |
| D. | They are involuntary |
| Answer» D. They are involuntary | |
| 10. |
Which of these statements is not true regarding skeletal muscles? |
| A. | They are also called voluntary muscles |
| B. | They help in the movement of food through the oesophagus |
| C. | They have striations |
| D. | They are involved in changing of body posture |
| Answer» C. They have striations | |
| 11. |
Which of these is not a basis of classification for muscles? |
| A. | Excitability |
| B. | Appearance |
| C. | Location |
| D. | Regulation of activities |
| Answer» B. Appearance | |
| 12. |
Which of these is not a property of muscles? |
| A. | Extensibility |
| B. | Excitability |
| C. | Degradability |
| D. | Elasticity |
| Answer» D. Elasticity | |
| 13. |
What percentage of body weight of an adult human is contributed by muscles? |
| A. | 20-30% |
| B. | 10-20% |
| C. | 40-50% |
| D. | 30-40% |
| Answer» D. 30-40% | |
| 14. |
Which of these do not involve flagellar movement? |
| A. | Swimming of spermatozoa |
| B. | Maintenance of water current in sponges |
| C. | Locomotion of some protozoans |
| D. | Movement of macrophages in blood |
| Answer» E. | |