This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 18 Body Fluids And Circulation – Quiz 11 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 11 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is true about human Red blood cells? A) They are lesser than WBC. B) They have nucleus. C) They are biconcave in shape. D) They are formed in the spleen of adults. Show Answer Correct Answer: C) They are biconcave in shape. 2. The pulse pressure is a measure of the: A) Number of heartbeats per minute. B) Sum of the diastolic and systolic pressure. C) Difference between arterial and venous pressure. D) Difference between systolic and diastoilc pressure. Show Answer Correct Answer: D) Difference between systolic and diastoilc pressure. 3. Cardiac output is blood A) Received by heart per minute. B) Pumped by ventricles per second. C) Pumped by left ventricle per minute. D) Pumped by left ventricle per hour. Show Answer Correct Answer: C) Pumped by left ventricle per minute. 4. Which of the following chambers of the heart has the thickest muscular wall? A) Left atrium. B) Right atrium. C) Left ventricle. D) Right ventricle. Show Answer Correct Answer: C) Left ventricle. 5. Unhealthy growth of tissue due to high pressures on the wall of artery is: A) Atheroma. B) Aroma. C) Adenoma. D) None. Show Answer Correct Answer: A) Atheroma. 6. Plasma has trace amounts of minerals except A) Mg 2+. B) Hco3-. C) Ca+. D) Ca2+. Show Answer Correct Answer: D) Ca2+. 7. Chordae tendineae are found in A) Ventricles of brain. B) Joints of legs. C) Ventricles of heart. D) Atria of heart. Show Answer Correct Answer: C) Ventricles of heart. 8. Serum differs from blood in: A) Lacking clotting factors. B) Lacking antibodies. C) Lacking globulins. D) Lacking albumins. Show Answer Correct Answer: A) Lacking clotting factors. 9. Which is known as pacemaker of Heart? A) SA node. B) AV node. C) AV bundle. D) Purkinjie fibres. Show Answer Correct Answer: A) SA node. 10. In arteriosclerosis: A) Arterial walls become very thin and weak so that the blood oozes out of the walls. B) Sex linked heredity is involved. C) Blood coagulates even in the arteries. D) Arterial walls become inelastic and thickened. Show Answer Correct Answer: D) Arterial walls become inelastic and thickened. 11. Adult human RBCs are enucleated. Which of the following statement(s) is/are most appropriate explanation for this feature?1) They do not need to reproduce2) They are somatic cells3) They do not metabolise4) All their internal space is available for oxygen transport. A) Only 1. B) 1, 3 & 4. C) 2 & 3. D) Only 4. Show Answer Correct Answer: D) Only 4. 12. Which of the following is NOT a component of blood? A) Chloroplasts. B) Leucocytes. C) Erythrocytes. D) Plasma. Show Answer Correct Answer: A) Chloroplasts. 13. What is the primary role of platelets? A) Transport oxygen. B) Clotting of blood. C) Defense against pathogens. D) Regulation of body temperature. Show Answer Correct Answer: B) Clotting of blood. 14. Which blood group is known as the universal donor? A) O. B) AB. C) B. D) A. Show Answer Correct Answer: A) O. 15. What is the primary role of platelets in the blood? A) Fight infections. B) Facilitate blood clotting. C) Transport oxygen. D) Aid in digestion. Show Answer Correct Answer: B) Facilitate blood clotting. 16. Choose the incorrect pair A) Dub-Closing of semilunar valve. B) Lub-Sharp closure of AV valve. C) Initiation of heartbeat-AV nodal tissue of heartbeat. D) Pulmonary artery-Deoxygenated blood artery. Show Answer Correct Answer: C) Initiation of heartbeat-AV nodal tissue of heartbeat. 17. What type of circulatory system do annelids and chordates possess? A) Closed circulatory system. B) Double circulatory system. C) Single circulatory system. D) Open circulatory system. Show Answer Correct Answer: A) Closed circulatory system. 18. Pacemaker is A) Instrument for measuring heart beat. B) Instrument for measuring pulse rate. C) Auriculo-ventricular node that provides impulse for heart beat. D) Sinu-aurical node that provides impulse for heart beat. Show Answer Correct Answer: D) Sinu-aurical node that provides impulse for heart beat. 19. What is the purpose of circulation A) Supply O2 and nutrients and remove waste. B) Break down the food. C) Get oxygen into the lungs. D) Remove solid waste. Show Answer Correct Answer: A) Supply O2 and nutrients and remove waste. 20. Intercostal muscles occur in: A) Diaphragm. B) Ribs. C) Nasal chamber. D) Larynx. Show Answer Correct Answer: B) Ribs. 21. Hormonal regulation of cardiac activity involves the hormones ..... and ..... , secreted by the ..... A) Epinephrine, norepinephrine, cortex of adrenal glands. B) Epinephrine, norepinephrine, medulla of adrenal glands. C) Thyroxine, calcitonin, thyroid gland. D) Aldosterone, corticosterone, cortex of adrenal glands. Show Answer Correct Answer: B) Epinephrine, norepinephrine, medulla of adrenal glands. 22. Value of cardiac output is: A) Auricular volume x ventricular volume. B) Stroke volume x rate of heart beat. C) Blood pumped in one minute. D) Both b and c. Show Answer Correct Answer: D) Both b and c. 23. White blood cells (WBCs) play a crucial role in the immune response. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. ASSERTION (A):Serum cannot be coagulated naturallyREASON (R):Serum lacks the clotting factors A) Both A and R are true and R is correct explanation of A. B) Both A and R are true and R is not correct explanation of A. C) A is true R is false. D) A is false R is true. Show Answer Correct Answer: A) Both A and R are true and R is correct explanation of A. 25. What is the oxidation state of iron in haemoglobin? A) Fe$^{-}$. B) Fe$^{2+}$. C) Fe$^{3+}$. D) Fe$^{4+}$. Show Answer Correct Answer: B) Fe$^{2+}$. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 18 Body Fluids And Circulation Quiz 1Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 2Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 3Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 4Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 5Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 6Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 7Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 8Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 9Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books