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Class 11 Biology MCQ Chapter 15 Body Fluids and Circulation
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Body Fluids and Circulation
Chapter – 15
| UNIT – (V) HUMAN PHYSIOLOGY |
| MCQ |
1. Which of the following is the fluid component of blood?
(a) Plasma.
(b) Serum.
(c) Lymph.
(d) Cerebrospinal fluid.
Ans: (a) Plasma.
2. What is the main function of lymphatic vessels in the circulatory system?
(a) Pumping blood to the body.
(b) Transporting oxygen.
(c) Draining excess tissue fluid and immune defense.
(d) Carrying nutrients to cells.
Ans: (c) Draining excess tissue fluid and immune defense.
3. Which of the following is not a component of the cardiovascular system?
(a) Heart.
(b) Blood vessels.
(c) Lungs.
(d) Blood.
Ans: (c) Lungs.
4. Which of the following is the smallest blood vessel in the body?
(a) Vein.
(b) Artery.
(c) Capillary.
(d) Aorta.
Ans: (c) Capillary.
5. Which of the following is not a type of blood vessel?
(a) Vein.
(b) Artery.
(c) Capillary.
(d) Lymphatic vessel.
Ans: (d) Lymphatic vessel.
6. Which of the following is the correct sequence of blood flow through the heart?
(a) Right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle, aorta.
(b) Right atrium, left atrium, right ventricle, left ventricle, pulmonary artery, lungs, pulmonary vein, aorta.
(c) Left atrium, left ventricle, pulmonary vein, lungs, pulmonary artery, right atrium, right ventricle, aorta.
(d) Left atrium, right atrium, left ventricle, right ventricle, pulmonary vein, lungs, pulmonary artery, aorta.
Ans: (a) Right atrium, right ventricle, pulmonary artery, lungs, pulmonary vein, left atrium, left ventricle, aorta.
7. Which of the following is the correct sequence of events during the cardiac cycle?
(a) Atrial systole, ventricular systole, isovolumetric relaxation, ventricular diastole.
(b) Ventricular diastole, atrial systole, ventricular systole, isovolumetric relaxation.
(c) Isovolumetric relaxation, atrial systole, ventricular diastole, ventricular systole.
(d) Ventricular systole, atrial systole, isovolumetric relaxation, ventricular diastole.
Ans: (a) Atrial systole, ventricular systole, isovolumetric relaxation, ventricular diastole.
8. Which of the following is the hormone responsible for regulating blood pressure and volume?
(a) Aldosterone.
(b) Antidiuretic hormone.
(c) Angiotensin II.
(d) Atrial natriuretic peptide.
Ans: (c) Angiotensin II.
9. Which of the following is the main function of the lymphatic system?
(a) Transport of oxygen and nutrients to tissues.
(b) Removal of waste products from tissues.
(c) Protection against infection.
(d) Regulation of blood pressure.
Ans: (c) Protection against infection.
10. Which of the following is the term used to describe the force exerted by blood against the walls of blood vessels?
(a) Blood pressure.
(b) Heart rate.
(c) Stroke volume.
(d) Cardiac output.
Ans: (a) Blood pressure.
11. Which of the following is responsible for the transport of oxygen in the human body?
(a) White blood cells.
(b) Platelets.
(c) Red blood cells.
(d) Plasma.
Ans: (c) Red blood cells.
12. Which of the following chambers of the heart pumps oxygenated blood to the systemic circulation?
(a) Right atrium.
(b) Right ventricle.
(c) Left atrium.
(d) Left ventricle.
Ans: (d) Left ventricle.
13. Which blood vessel carries oxygenated blood away from the heart to the body tissues?
(a) Vein.
(b) Artery.
(c) Capillary.
(d) Venules.
Ans: (b) Artery.
14. What is the main component of blood plasma?
(a) Red blood cells.
(b) White blood cells.
(c) Water.
(d) Platelets.
Ans: (c) Water.
15. Which of the following helps in the clotting of blood?
(a) Hemoglobin.
(b) Albumin.
(c) Fibrinogen.
(d) Globulin.
Ans: (c) Fibrinogen.
