Transport – Online MCQs Test – Biology 9th

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

2. In flowering plants xylem is made up of:

3. These are present in blood for clotting of blood.

4. If the atmospheric pressure is low, the rate of transpiration will be:

5. Blood consists of two parts:

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

7. The circulation of blood in our body is called:

8. The high solute potential of leaf cells attract:

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

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

11. This layer of arteries consists mostly of smooth muscle and elastic fibers.

12. This much % of plasma is water.

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

14. It conducts manufactured food (sucrose) from part of plant where it is synthesized to other parts of the plant where it is required.

15. The movement of organic materials (food) takes place through:

16. On average, a healthy heart beats are:

17. The wall of these vessels become strong by the deposition of chemical substance called lignin.

18. They are the pores usually found in the leaf epidermis.

19. It pumps blood to all other parts of the body.

20. The loss of internal water of plant in the form of vapours from aerial part of plant is called: