Transport – Online MCQs Test – Biology 9th

1. The function of platelets is:

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

3. Blood is a special type of:

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

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

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

7. The high solute potential of leaf cells attract:

8. The largest artery of our body is:

9. He was the first Arab physician to explain pulmonary circulation.

10. Upward movement of water with mineral is called:

11. In this type of circulatory system blood flows through the spaces among tissue so it directly comes in contact with tissues.

12. In cell, transpiration maintains:

13. 62% of leucocytes (WBCs) are:

14. In flowering plants xylem is made up of:

15. Water and mineral salts enter the plant through:

16. Places of destruction of Erythrocytes (RBCs) are:

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

18. They control the opening and closing of stomata.

19. Atria are completely separated from each other by:

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