Circulatory System Quiz 6 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Carry blood towards the heart

Correct Answer: B) Veins.

2. The function of hemoglobin is to .....

Correct Answer: A) Carry oxygen.

3. Where does the blood go after it leaves the right ventricle?

Correct Answer: A) Pulmonary artery.

4. The heart is protected by

Correct Answer: A) Ribcage.

5. The two upper chambers of a heart called

Correct Answer: B) Atria.

6. Which blood vessel carries blood to the heart?

Correct Answer: B) Vein.

7. What is the role of capillaries in the circulatory system?

Correct Answer: C) They are small vessels that wrap around organs.

8. What do lymphatic vessels have that keep lymph flowing in only one direction?

Correct Answer: A) One way valves.

9. What is the primary function of platelets?

Correct Answer: B) Blood clotting.

10. Atherosclerosis is a leading cause of other cardiovascular disease (CVD) and it happens when arteries become clogged by .....

Correct Answer: B) Plaque.

11. A solution of 90% water and 10% solute (metabolites, and wastes, salts and ions, and proteins)

Correct Answer: B) Blood Plasma.

12. Define oxygenated haemoglobin.

Correct Answer: A) Haemoglobin carrying oxygen.

13. Which best describes the purpose of the cardiovascular system?

Correct Answer: C) It delivers blood to the body's tissues.

14. Plants absorb water by their .....

Correct Answer: B) Root hairs.

15. HbCO2 is .....

Correct Answer: C) Carbaminohaemoglobin.

16. The pulse rate of mouse is ..... beats per minute.

Correct Answer: C) 500.

17. Choose the answer that correctly describes the capitalized word in the following sentence:CHEATING never gets you anywhere.

Correct Answer: C) Gerund.

18. What does circulatory mean?

Correct Answer: A) Movement of blood around a body.

19. ..... Carry blood away from the heart to various organs

Correct Answer: A) Arteries.

20. What is the liquid part of the blood called?

Correct Answer: C) Plasma.