Transport – Online MCQs Test – Biology 9th

1. In human heart blood returning from lungs first drains into the:

2. In man, closed type circulatory system is found, which consists of:

3. The deoxygenated blood from all over the body except lungs received in:

4. The largest artery of our body is:

5. The normal range of heart rate is:

6. Average life of Erythrocytes (RBCs) is:

7. Root hairs are most important to a plant because they:

8. Root has a root tip which is the growing part of root covered by:

9. To prevent backward flow of blood, the pulmonary arch and systemic aorta, both are guarded by:

10. Stomata are surrounded by two kidney shaped:

11. The rate of transpiration decreases with the:

12. Point out the mismatch:

13. They have walls made up of single layer of flattened cells called endothelium:

14. When a heart beats very fast, this condition is called:

15. The innermost layer of arteries is made up of:

16. Transport of various substances within the body of an animal is called:

17. Tricuspid valve connects:

18. Each root hair is a fine tubular outgrowth of an/a:

19. Transpiration facilitates:

20. Blood consists of two parts: