This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 18 Body Fluids And Circulation – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the role of valves in the circulatory system? A) To control the flow of blood. B) To regulate blood pressure. C) To pump blood to the body. D) To produce blood cells. Show Answer Correct Answer: A) To control the flow of blood. 2. Blood platelets are involved in A) Inflammatory reactions. B) Allergic reactions. C) Clotting of blood. D) Transport of the gases. Show Answer Correct Answer: C) Clotting of blood. 3. The most abundant WBC is ..... A) Basophil. B) Eosinophil. C) Neutrophil. D) Lymphocytes. Show Answer Correct Answer: C) Neutrophil. 4. Rh factor is concerned with blood grouping. It derives its name from- A) Monkey. B) Rhesus Monkey. C) Man. D) Chimpanzee. Show Answer Correct Answer: B) Rhesus Monkey. 5. Maximum lobed nucleus is found in A) Monocyte. B) Eosinophil. C) Basophil. D) Neutrophil. Show Answer Correct Answer: D) Neutrophil. 6. Which blood vessel has thinnest wall & is responsible for the exchange of nutrients and gases between blood and tissues? A) Capillaries. B) Venules. C) Aorta. D) Artery. Show Answer Correct Answer: A) Capillaries. 7. If you suspect major deficiency of antibodies in a person to which of the following would you look for confirmatory evidences: A) Serum globulins. B) Fibrinogen in plasma. C) Serum albumins. D) Haemocytes. Show Answer Correct Answer: A) Serum globulins. 8. The longer heart sound is A) Lub. B) Dub. C) Both lub and dub are equal. D) Sometimes (a) and sometimes(b). Show Answer Correct Answer: A) Lub. 9. During each cardiac cycle two prominent sounds are produced which can be easily heard through a stethoscope. If during check up the heart sounds are not clear it indicates A) Atherosclerosis. B) Cardiac arrest. C) Heart failure. D) Leaky valves. Show Answer Correct Answer: D) Leaky valves. 10. When the heart muscle is sudden;y damaged due to inadequate blood supply it is called: A) CAD. B) Cardiac arrest. C) Heart failure. D) Heart attack. Show Answer Correct Answer: D) Heart attack. 11. Platelets are derived from & also called as A) Megakaryocytes & Thrombocytes. B) Monocytes &Leucocytes. C) Lymphocytes &thrombocytes. D) All of the above. Show Answer Correct Answer: A) Megakaryocytes & Thrombocytes. 12. What is the primary function of blood? A) Produce hormones. B) Regulate temperature. C) Store energy. D) Transport nutrients and oxygen. Show Answer Correct Answer: D) Transport nutrients and oxygen. 13. Which of the following is a formed element in the blood responsible for blood clotting? A) Red blood cells. B) Plasma. C) White blood cells. D) Platelets. Show Answer Correct Answer: D) Platelets. 14. Blood vessel carrying least CO$_{2}$ is A) Vena cava. B) Pulmonary artery. C) Pulmonary vein. D) Hepatic vein. Show Answer Correct Answer: C) Pulmonary vein. 15. The autonomous neutral system could moderate cardiac activity. Select the correct answer. A) The parasympathetic system stimulates the heart rate and stroke volume. B) The sympathetic system stimulates the heart rate and stroke volume. C) The parasympathetic system decreases the heart rate but increases stroke volume. D) The sympathetic system decreases the heart rate but increases stroke volume. Show Answer Correct Answer: B) The sympathetic system stimulates the heart rate and stroke volume. 16. A labeled red blood corpuscle is released into the arterial circulation in the left leg. It is recaptured 30 seconds later in the left lung. What is the minimum number of chambers of the heart it must have passed through? A) 2. B) 0. C) 1. D) 3. Show Answer Correct Answer: A) 2. 17. In ECG, P-R interval corresponds to A) Time interval between onset of ventricular contraction. B) Time delay in AV node. C) SA nodal conduction time. D) Increased ventricular contraction. Show Answer Correct Answer: B) Time delay in AV node. 18. Normal rhythmic activity of the heart generated by nodal tissue is described as what? A) Neurogenic. B) Photogenic. C) Myogenic. D) Endocrinogenic. Show Answer Correct Answer: C) Myogenic. 19. In which of the following situations, there is a risk factor for children acquiring erythroblastosis fetalis? A) Mother is Rh-ve and father is Rh-ve. B) Mother is Rh-ve and father is Rh + ve. C) Mother is Rh + ve and father is Rh +ve. D) Mother is Rh + ve and father is Rh-ve. Show Answer Correct Answer: B) Mother is Rh-ve and father is Rh + ve. 20. Assertion (A)-SA node is called pacesetter of heart .Reason (R)-SA Node is responsible for initiating and maintaining the rhythmic contractile activity of the heart A) A and R are true and R is the true explanation of A. B) A and R are true but R is not the true explanation of A. C) A is true but R is false. D) A is false but R is true. Show Answer Correct Answer: D) A is false but R is true. 21. Which one of the following is correct for 'atherosclerosis'? A) Constriction of arterial lumen reduces the blood flow. B) High blood plasma concentration of cholesterol (LDL) is responsible for this condition. C) Cholesterol deposition at the inner wall of the artery. D) All of these. Show Answer Correct Answer: D) All of these. 22. Which one of the following statements is correct regarding blood pressure? A) 120/80 mmHg is considered high and requires treatment. B) 100/55 mmHg is considered an ideal blood pressure. C) 105/50 mmHg makes one very active. D) 190/110 mmHg may harm vital organs like brain and kidney. Show Answer Correct Answer: D) 190/110 mmHg may harm vital organs like brain and kidney. 23. The stroke volume multiplied by the heart rate gives to A) Cardiac cycle. B) Cardiac input. C) Cardiac output. D) None of the above. Show Answer Correct Answer: C) Cardiac output. 24. What is the main component of blood plasma? A) Proteins. B) Erythrocyte. C) Water. D) Lymph. Show Answer Correct Answer: C) Water. 25. RBCs placed in distilled water will: A) Burst. B) Clump. C) Shrink. D) Will remain same. Show Answer Correct Answer: A) Burst. 26. ECG depicts the depolarisation and repolarisation processes during the cardiac cycle. In the ECG of a normal healthy individual, which one of the following waves is not represented? A) Repolarisation of ventricles. B) Depolarisation of ventricles. C) Depolarisation of atria. D) Repolarisation of atria. Show Answer Correct Answer: D) Repolarisation of atria. 27. What is the average number of beats per minute for a healthy heart? A) 70-80. B) 80-90. C) 90-100. D) 60-70. Show Answer Correct Answer: A) 70-80. 28. The opening between the Right atrium and Right ventricle is guarded by A) Bicuspid valve. B) Mitral valve. C) Tricuspid valve. D) Semilunar valve. Show Answer Correct Answer: C) Tricuspid valve. 29. Which of the following factors is known as Christmas factor? A) Factor XII. B) Factor VIII. C) Factor IX. D) Factor IV. Show Answer Correct Answer: C) Factor IX. 30. "Bundle of His" is a network of A) Muscle fibres distributed throughout the heart walls. B) Muscle fibres found only on the ventricle wall. C) Nerve fibres distributed in ventricles. D) Nerve fibres found throughout the heart. Show Answer Correct Answer: B) Muscle fibres found only on the ventricle wall. 31. What happens when the pacemaker becomes non-functional? A) Only auricles contract rhythmically. B) Only ventricles contract rhythmically. C) Cardiac muscles do not undergo co-ordinate rhythmic movements. D) Auricles and ventricles contract rhythmically. Show Answer Correct Answer: C) Cardiac muscles do not undergo co-ordinate rhythmic movements. 32. In the clotting mechanism pathway, thrombin activates the factors A) VIII, X, V. B) XI, IX, X. C) IX, VIII, X. D) XI, VIII, V. Show Answer Correct Answer: D) XI, VIII, V. 33. Assertion (A)-Lymph is a colourless fluidReason (R)-It contains WBCs. 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: B) Both A and R are true and R is not correct explanation of A. 34. A drop of each of the following, is placed separately on four slides. Which of them will not coagulate? A) Blood from pulmonary artery. B) Whole blood from pulmonary vein. C) Blood plasma. D) Blood serum. Show Answer Correct Answer: D) Blood serum. 35. The second heart sound (dub) is associated with the closure of A) Tricuspid valve. B) Semilunar valves. C) Bicuspid valve. D) Tricuspid and bicuspid valves. Show Answer Correct Answer: B) Semilunar valves. 36. Read the following statements and select the correct option.Statement 1:Prothrombin is essential for blood clottingStatement 2:Prothrombin is synthesized in the liver in the presence of Ca$^{++}$. A) Both statements 1 and 2 are correct. B) Statement 1 is correct but statement 2 is incorrect. C) Statement 1 is incorrect but statement 2 is correct. D) Both statements 1 and 2 are incorrect. Show Answer Correct Answer: B) Statement 1 is correct but statement 2 is incorrect. 37. ASSERTION (A):A Person with blood group 'O' is called universal donorREASON (R):Blood group 'O' person has no antibodies 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: C) A is true R is false. 38. Mark the correct route: A) S.a node-av node-bundle of his-purkinje fibres-heart muscles. B) S.a node-purkinje fibres-bundle of his-av node-heart muscles. C) Av node-bundle of his-s.a node-purkinje fibres-heart muscles. D) Av node-s.a node-purkinje fibres-bundle of his-heart muscles. Show Answer Correct Answer: A) S.a node-av node-bundle of his-purkinje fibres-heart muscles. 39. Leeches secrete which of the following anticoagulant: A) Hirudin. B) Histamine. C) Haemozoin. D) Heparin. Show Answer Correct Answer: A) Hirudin. 40. What is the average lifespan of a red blood cell in circulation?s A) 1 day. B) 120 days. C) 30 days. D) 7 days. Show Answer Correct Answer: B) 120 days. 41. A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood without checking for blood group compatibility. What could be the blood group of the donor? A) Blood group B. B) Blood group A. C) Blood group O. D) Blood group AB. Show Answer Correct Answer: C) Blood group O. 42. The life span of thrombocytes is A) 4 to 5 weeks. B) 3 to 4 weeks. C) 3 to 7 days. D) None of these. Show Answer Correct Answer: C) 3 to 7 days. 43. What is the role of the AV bundle in the heart? A) Transmits electrical impulses. B) Pumps blood. C) Regulates heart rate. D) Filters blood. Show Answer Correct Answer: A) Transmits electrical impulses. 44. Anti-A and Anti-B antibodies are not found in which of the following blood group? A) B. B) AB. C) A. D) O. Show Answer Correct Answer: B) AB. 45. What is the most abaundant cell type in blood A) Platelets. B) Erythrocytes. C) Monocytes. D) Leucocytes. Show Answer Correct Answer: B) Erythrocytes. 46. Electrocardiogram is a measure of- A) Ventricular contraction. B) The volume of blood pumped. C) Electrical activity of the heart. D) Heart rate. Show Answer Correct Answer: C) Electrical activity of the heart. 47. What is the function of the hepatic portal system? A) Transport oxygenated blood. B) Transport blood from the intestines to the liver. C) Carry blood from the heart to the lungs. D) Regulate blood pressure. Show Answer Correct Answer: B) Transport blood from the intestines to the liver. 48. Erythropoiesis starts in A) Red bone marrow. B) Liver. C) Kidney. D) Spleen. Show Answer Correct Answer: A) Red bone marrow. 49. Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body. A) Leucocytes. B) Neutrophils. C) Erythrocytes. D) Thrombocytes. Show Answer Correct Answer: D) Thrombocytes. 50. What is the cardiac output in a healthy individual? A) 7 liters per minute. B) 5 liters per minute. C) 3 liters per minute. D) 10 liters per minute. Show Answer Correct Answer: B) 5 liters per minute. 51. Erythroblastosis foetalis condition arises when A) Rh +ve mother carries a Rh-ve foetus for the first time. B) Rh +ve mother carries a Rh-ve foetus for the second time. C) Rh-ve mother carries a Rh +ve foetus for the second time. D) Rh-ve mother carries a Rh+ve foetus for the first time. Show Answer Correct Answer: C) Rh-ve mother carries a Rh +ve foetus for the second time. 52. In humans, blood passes from the post caval to the diastolic right atrium of heart due to A) Stimulation of the sino auricular node. B) Pressure difference between the post caval and atrium. C) Pushing open of the venous valves. D) Suction pull. Show Answer Correct Answer: B) Pressure difference between the post caval and atrium. 53. Which of the following represents pulmonary circulation? A) In auricle (oxygenated blood)-lungs (deoxygenated blood)-Right auricle(. B) Right auricle (deoxygenated blood)-lungs (oxygenated blood)-Left auricle. C) Left auricle (deoxygenated blood)-lungs (oxygenated blood)-Right auricle. D) Left auricle (oxygenated blood)-lungs (deoxygenated blood)-Left auricle. Show Answer Correct Answer: B) Right auricle (deoxygenated blood)-lungs (oxygenated blood)-Left auricle. 54. Which among the following is correct during each cardiac cycle? A) Which among the following is correct during each cardiac cycle?. B) The volume of blood pumped out by the Rt and Lt ventricles is different. C) The volume of blood received by each atrium is different. D) The volume of blood received by the aorta and pulmonary artery is different. Show Answer Correct Answer: A) Which among the following is correct during each cardiac cycle?. 55. X' is the rhythmic contraction and relaxation in the aorta and its main arteries. What is X? A) Heartbeat. B) Cardiac output. C) Pulse. D) Hear rate. Show Answer Correct Answer: C) Pulse. 56. Assertion:Respiratory rhythm centre is moderated by the Pneumotaxic centre of the of the brain. Reason:Pneumotaxic centres in the pons region can alter the rate of respiration. A) Both Assertion and Reason are true and Reason is the correct explanation of Assertion. B) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. C) Assertion is true but Reason is false. D) Both Assertion and Reason are false. Show Answer Correct Answer: B) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion. 57. No of platelets range from A) 2-4 lakhs. B) 1.5-4 lakhs. C) 1.5-3 lakhs. D) Infinity as produced repeatedly. Show Answer Correct Answer: C) 1.5-3 lakhs. 58. Assertion; In lymphatic system lymph is known as tissue fluid. Reason; It comprises of plasma proteins, R.B.Cs, W.B.Cs A) Both assertion and reason are true and reason is correct explanation of assertion. B) Both assertion and reason are true but reason is not correct explanation of assertion. C) Assertion is true but reason is false. D) Assertion is false but reason is true. Show Answer Correct Answer: C) Assertion is true but reason is false. 59. In a cardiac output of 5250 mL per minute, with 75 heartbeats per minute, the stroke volume is A) 80mL. B) 60mL. C) 55mL. D) 70mL. Show Answer Correct Answer: D) 70mL. 60. Child death may occur in the marriage of A) Rh+ man and Rh+ woman. B) Rh+ man and Rh-woman. C) Rh-man and Rh-woman. D) Rh-man and Rh+ woman. Show Answer Correct Answer: B) Rh+ man and Rh-woman. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 18 Body Fluids And Circulation Quiz 1Class 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 1 The Living World QuizClass 11 Biology Chapter 10 Cell Cycle And Cell Division Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books