Biology Practice: Circulatory System (Mock Test 2 - Intermediate)
1. The double-layered protective membrane covering the heart is the:
2. Which chambers of the heart have thicker muscular walls?
3. Arteries generally carry oxygenated blood, except for the:
4. Which blood vessels possess 'Valves' to prevent the backflow of blood?
5. The largest artery in the human body is the:
6. What is the average lifespan of a Red Blood Cell (RBC)?
7. The process by which WBCs squeeze through capillary walls to reach an infection is:
8. Blood Group AB has which of the following characteristics?
9. Which valve is located between the right auricle and the right ventricle?
10. The biological term for the 'Clotting of Blood' is:
11. The rhythmic expansion of an artery felt at the wrist is the:
12. Which blood vessel carries oxygenated blood from the lungs to the heart?
13. The percentage of water in Blood Plasma is approximately:
14. Which organ is responsible for the formation of RBCs in adults?
15. The 'lub-dup' sound of the heart is produced by the:
16. Which blood component is a non-living part of the blood?
17. A person with Blood Group O has which antibodies in their plasma?
18. The main function of Lymphocytes (a type of WBC) is to produce:
19. Which chamber of the heart pumps blood to the entire body through the aorta?
20. The superior and inferior Vena Cava carry blood to the: