Biology Practice: Circulatory System (Mock Test 5 - Ultimate Comprehensive)
1. The primary function of the circulatory system is to:
2. Which of the following is a living cellular component of the blood?
3. Hemoglobin is an iron-rich protein that has a strong affinity for:
4. The specific blood cells responsible for 'Hemostasis' (prevention of blood loss) are:
5. Which heart chamber receives oxygenated blood directly from the lungs?
6. The valve located at the opening of the Right Ventricle into the Pulmonary Artery is the:
7. The average volume of blood in a healthy adult human is approximately:
8. Which blood group lacks both Antigen A and Antigen B on the surface of RBCs?
9. 'Systole' is the phase of the cardiac cycle where the heart muscles:
10. The only vein in the human body that carries oxygenated blood is the:
11. Capillaries are highly suited for exchange because they are:
12. The 'Rh Factor' is an antigen first discovered in which animal?
13. Which component of blood plasma helps in maintaining immunity by producing antibodies?
14. The 'Mitral Valve' is another name for the:
15. A 'Heart Attack' (Myocardial Infarction) occurs when there is a blockage in the:
16. 'Lymph' is essentially blood plasma without:
17. The 'Double Circulation' consists of ______ and ______.
18. If a person's pulse rate is 72 per minute, their heart rate is likely:
19. Which blood group has no antibodies (neither Anti-A nor Anti-B) in the plasma?
20. The 'Spleen' is often called the 'Graveyard of RBCs' because: