Life Processes - Transportation

Grade 9 Science — Life Processes - Transportation: 25 practice questions with instant scoring and explanations.

1. Blood is composed of:
2. The function of haemoglobin is to:
3. White blood cells primarily function to:
4. Platelets are involved in:
5. The heart has how many chambers?
6. The wall of the heart that contracts is called:
7. Blood from the lungs returns to the heart through:
8. The valve between the left atrium and left ventricle is called:
9. Arteries carry blood:
10. Veins are characterized by having:
11. Gas exchange in tissues occurs in:
12. The pulmonary circulation carries:
13. A normal human heart rate in a resting adult is:
14. The average blood pressure of a healthy adult is:
15. The aorta carries blood from:
16. Transport in plants occurs through:
17. Xylem transports:
18. Phloem transports:
19. The rate of transpiration is increased by:
20. Root pressure contributes to water transport by:
21. Companion cells are associated with:
22. The vessel elements in xylem are:
23. Active transport in phloem requires:
24. Which coronary artery blockage is most serious?
25. The purpose of valves in veins is to: