Circulatory System Quiz 655 (20 MCQs)

Quiz Instructions

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1. What is attached to red blood cells that make it red in color?

Correct Answer: C) Iron.

2. Diffusion means

Correct Answer: A) The spreading out of particles.

3. The ..... of the heart is responsible for pumping blood to the body. *

Correct Answer: C) Left ventricle.

4. Which human system is responsible for delivering blood to organs?

Correct Answer: B) Circulatory.

5. Which of the following is an accessory organ?

Correct Answer: C) Liver.

6. Which blood component is responsible for helping the blood to clot? When blood flows outside the body

Correct Answer: C) Platelets.

7. Which hormone regulates the RBC production in our body

Correct Answer: D) Erythropoietin.

8. Your heart beats faster when you exercise.

Correct Answer: A) True.

9. What does the Ventricle mean?

Correct Answer: C) Little belly.

10. Which one is the main organ of the circulatory system?

Correct Answer: A) Heart.

11. Cell fragments that help clot the blood

Correct Answer: A) Platelets.

12. Which two body systems interact to carry out gas exchange?

Correct Answer: C) Circulatory and Respiratory.

13. The muscle that contracts and relaxes tomoves air in and out of the lungs

Correct Answer: C) Diaphragm.

14. Which is true about plasma?

Correct Answer: B) Plasma is the liquid portion of blood.

15. Blood in the Inferior Vena Cava:

Correct Answer: B) Deoxygenated.

16. Which type of blood travels to the body cells?

Correct Answer: B) Oxygenated.

17. What contains hemoglobin which carries both oxygen and carbon dioxide ( give blood its red color), have a disc-shape, and no nucleus?

Correct Answer: A) Erythrocytes.

18. Blood from left ventricle goes to .....

Correct Answer: A) Aorta.

19. Circulated

Correct Answer: C) Circular.

20. In the blood, most oxygen is carried as (A), most carbon dioxide is carried as (B)

Correct Answer: A) A) Oxyhaemoglobin, B) Bicarbonate ions.