Biology Practice: Circulatory System (Mock Test 1 - Basic)
1. The fluid part of the blood that constitutes about 55% of its total volume is called:
2. Which of the following blood cells are responsible for carrying oxygen to different parts of the body?
3. The human heart is divided into how many chambers?
4. The blood vessels that carry oxygenated blood away from the heart to all parts of the body are:
5. Which mineral is essential for the process of blood clotting?
6. The iron-rich respiratory pigment found in RBCs is:
7. The only artery in the human body that carries deoxygenated blood is the:
8. Blood platelets play a vital role in:
9. The wall of which heart chamber is the thickest to pump blood to the entire body?
10. The biological term for the "Soldiers of the Body" that provide immunity is:
11. A person with which blood group is known as a "Universal Donor"?
12. The valve present between the right atrium and right ventricle is the:
13. The protective double-walled membrane surrounding the heart is called:
14. Which blood vessel contains valves to prevent the backflow of blood?
15. The lifespan of a Red Blood Cell is approximately ________ days.
16. Which blood group is known as the "Universal Recipient"?
17. The process of white blood cells squeezing through capillary walls to reach an infected site is:
18. The rhythmic contraction and relaxation of the heart is known as the:
19. Which instrument is used to measure human blood pressure?
20. The circulation of blood between the heart and the lungs is called: