Transport – Online MCQs Test – Biology 9th

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

2. A type of circulatory system blood flow through the spaces among tissues called:
(i) open type circulatory system
(ii) close type circulatory system
(iii) pulmonary circulatory system

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

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

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

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

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

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

9. They control the opening and closing of stomata.

10. Transpiration mainly takes place through special pores guarded by specialized guard cells called:

11. Which of these are involved in the clotting of blood?

12. Colourless, nucleated, irregular cells are:

13. The blood flows slower in:

14. The decreasing heart rate is a result of slow heartbeat, which leads to a condition called:

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

16. Transpiration facilitates:

17. Types of transport tissues in plants are:

18. They produce in bone marrow.

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

20. By volume, the whole blood consists of: