Transport – Online MCQs Test – Biology 9th

1. The loss of water from mesophyll cells make them:

2. Average life of Erythrocytes (RBCs) is:

3. Open type circulatory system is found in:

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

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

6. Root is highly branched and each branch is heavily covered by:

7. Blood consists of two parts:

8. Bicuspid valve connects:

9. They play important part in clotting of blood.

10. What regulates the flow of water through the xylem?

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

12. Human plasma proteins include which of the following?
(i) Fibrinogen
(ii) Hemoglobin
(iii) Albumin

13. Water and mineral salts enter the plant through:

14. In open circulatory system, blood remains filled in the open tissue spaces called:

15. Minerals are taken up by root hair in two ways:
(i) Diffusion
(ii) Active transport
(iii) Osmosis
(iv) Passive Tran port

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

17. It brings deoxygenated blood from the head, neck and arms to right atrium.

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

19. Blood is a special type of:

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