Circulatory System Quiz 107 (20 MCQs)

Quiz Instructions

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1. These vessels carry blood from the body back to the heart.

Correct Answer: A) Veins.

2. Deoxygenated blood is represented by the color (a)

Correct Answer: A) A Blue.

3. Wall that separates the right and left sides of the heart

Correct Answer: C) Septum.

4. This human body system is a series of organs responsible for taking in oxygen and expelling carbon dioxide.

Correct Answer: C) Respiratory system.

5. All of the nonliving parts of an ecosystem are .....

Correct Answer: C) Abiotic.

6. What physical phenomenon is responsible for absorption of water by roots? What is the physical phenomenon that causes roots to absorb water?

Correct Answer: B) Osmosis Osmosis.

7. The heart of an adult beats ..... time per minute.

Correct Answer: C) 72.

8. What organ is found in the chest and helps animals breathe?

Correct Answer: C) Lungs.

9. Mr. Mendoza's class studied different body systems. What is an important function of the circulatory system?

Correct Answer: B) Carrying oxygen to cells.

10. The ..... of the heart receives oxygen poor ..... blood that is flowing back to the heart from the ..... circulation.

Correct Answer: C) Right atrium, venous, systemic.

11. RBC's are also known as .....

Correct Answer: C) Erythrocytes.

12. The node in the heart that make the ventricles contract

Correct Answer: B) Atrioventricular.

13. Septum upper part:

Correct Answer: A) Interatrial septum.

14. Which of the following signs is not characteristic of inflammation?

Correct Answer: C) Cold.

15. Wind/o

Correct Answer: A) To choke.

16. Who am I? I am the largest (in size) blood component and have a nucleus.

Correct Answer: D) Leukocyte.

17. Which of the following are the blood vessels that have the thickest walls?

Correct Answer: B) Arteries.

18. An increase in CO2 in human blood shifts the oxyhaemoglobin dissociation curve to the right. What is the explanation for the effect?

Correct Answer: D) Increasing the H+ concentration descreases haemoglobin affinity for oxygen.

19. Is also called the windpipe

Correct Answer: B) Trachea.

20. Heart with only one atrium and ventricle "Single Circulation"

Correct Answer: A) Fish Heart.