This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 18 Body Fluids And Circulation – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 6 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which component of blood is responsible for oxygen transport? A) Red blood cells. B) Platelets. C) Plasma. D) White blood cells. Show Answer Correct Answer: A) Red blood cells. 2. A cardiac pacemaker fails to function normally in a patient. A pacemaker is to be grafted into him by the doctors. The graft will likely be placed at the site of? A) Sinuatrial node. B) Purkinje system. C) Atrioventricular bundle. D) Atrioventricular node. Show Answer Correct Answer: A) Sinuatrial node. 3. ASSERTION (A):During joint diastole, no blood flows from atria to ventricleREASON (R):Cuspid valves are closed during joint diastole A) Both A and R are true and R is the correct explanation of A. B) Both A and R are true and R is not the correct explanation of A. C) A is true R is false. D) Both A and R are false. Show Answer Correct Answer: D) Both A and R are false. 4. What happens during the systole phase of the cardiac cycle? A) Blood fills the chambers. B) Blood is pumped out. C) Heart relaxes. D) Valves close. Show Answer Correct Answer: B) Blood is pumped out. 5. Which enzyme is responsible for the conversion of inactive fibrinogens into fibrins: A) Thrombin. B) Renin. C) Epinephrine. D) Thrombokinase. Show Answer Correct Answer: A) Thrombin. 6. Which one have open circulatory system:1. ascidia 2. cockroach 3. earthworm 4. prawn 5. leech 6. snail 7. squid A) 2, 4, 6. B) 1, 2, 4, 6. C) 3, 4, 5, 7. D) 1, 2, 4, 5, 6. Show Answer Correct Answer: A) 2, 4, 6. 7. Prothrombin required for blood clotting is produced in A) Pancreas. B) Spleen. C) Stomach. D) Liver. Show Answer Correct Answer: D) Liver. 8. 2 major types of lymphocytes and function: A) A&BOxygen transport. B) X&YBlood clotting. C) B&TImmune response. D) Alpha & betaDigestion. Show Answer Correct Answer: C) B&TImmune response. 9. What is the main function of the pulmonary circuit? A) Oxygenating blood. B) Distributing nutrient. C) Pumping blood to the body. D) Filtering blood. Show Answer Correct Answer: A) Oxygenating blood. 10. Which ion plays a very important role in clotting reactions? A) Potassium ions K+. B) Calcium ions Ca2+. C) Sodium ions Na+. D) Magnesium ions Mg2+. Show Answer Correct Answer: B) Calcium ions Ca2+. 11. Which of the following is not a component of the lymphatic system? A) Lymph nodes. B) Lymph vessels. C) Spleen. D) Pancreas. Show Answer Correct Answer: D) Pancreas. 12. The rate of heartbeat is regulated by the integrated activity of inhibiting and accelerated effects occurring in which part of the brain? A) Diencephalon. B) Pons varolii. C) Cerebellum. D) Medulla oblongata. Show Answer Correct Answer: D) Medulla oblongata. 13. A simple organism such as a jellyfish uses ..... to exchange gases and nutrients with their surrounding environment. A) Atria. B) Diffusion. C) Blood. D) Blood vessels. Show Answer Correct Answer: B) Diffusion. 14. Tick the correct answer:Erythroblastosis foetalis is due to the destruction of A) Foetal suffers from artheroscelorosis. B) Foetal RBCs. C) Foetal WBCs. D) Both B and C. Show Answer Correct Answer: B) Foetal RBCs. 15. In the ABO blood grouping you normally can be type: A) A. B) B. C) ABO. D) A, B, AB or O. E) All of the above. Show Answer Correct Answer: D) A, B, AB or O. 16. A specialised nodal tissue embedded in the lower corner of the right atrium, close to Atrio-ventricular septum, delays the spreading of impulses to heart apex for about 0.1 sec. This delay allows A) Blood to enter pulmonary arteries. B) Blood to enter aorta. C) The atria to empty completely. D) The ventricles to empty completely. Show Answer Correct Answer: C) The atria to empty completely. 17. The life span of human granulocytic WBC is approximately A) Between 20 to 30 days. B) More than 4 months. C) Less than 10 days. D) Between 2 to 3 months. Show Answer Correct Answer: C) Less than 10 days. 18. S 1-Open circulatory system is considered to be more advantageous than closed one.S 2-Closed circulatory system are present in Chordates and Annelids. A) S 1 and S 2 are true. B) S 1 and S 2 are false. C) S 1 is true but S 2 is false. D) S 1 is false but S 2 is true. Show Answer Correct Answer: D) S 1 is false but S 2 is true. 19. Second cardiac sound is associated with- A) Closure of tricuspid and bicuspid valves. B) Opening of tricuspid and bicuspid valves. C) Closure of semilunar valves. D) Closure of atrioventricular valves. Show Answer Correct Answer: C) Closure of semilunar valves. 20. S 1-Heart, the mesodermally derived organ, is situated in the abdominal cavity.S 2-The atrium and the ventricle of the same side are separated by a thin fibrous tissue called the atrio-ventricular septum. A) S 1 and S 2 are true. B) S 1 and S 2 are False. C) S 1 is true but S 2 is false. D) S 1 is false but S 2 is true. Show Answer Correct Answer: B) S 1 and S 2 are False. 21. What is the significance of the first heart sound (lub)? A) Opening of semilunar valves. B) Closure of atrioventricular valves. C) Opening of atrioventricular valves. D) Closure of semilunar valves. Show Answer Correct Answer: B) Closure of atrioventricular valves. 22. Lymph nodes form A) Antigens. B) Lymph. C) Antibodies. D) Hormones. Show Answer Correct Answer: C) Antibodies. 23. Which of the following statements about circulatory systems is false? A) The earthworm has a closed circulatory system. B) Lobsters are organisms that have closed circulatory systems. C) In closed circulatory systems, blood flows through vessels that are separate from the interstitial fluid of the body. D) In an open circulatory system, hemolymph empties into the body cavity. Show Answer Correct Answer: B) Lobsters are organisms that have closed circulatory systems. 24. A drop of each of the following is placed seperately on four slides, which of them will not coagulate: A) Whole blood from pulmonary vein. B) Sample from thoracic duct of the lymphatic system. C) Blood serum. D) Blood plasma. Show Answer Correct Answer: C) Blood serum. 25. The condition of Erythroblastosis foetalis can be avoided by administering- A) Anti-Rh antibodies to the mother immediately after the delivery of the first child. B) Rh antigen to the mother immediately after the delivery of the second child. C) Anti-Rh antibodies to the mother immediately after the delivery of the second child. D) Rh antigen to the mother immediately after the delivery of the first child. Show Answer Correct Answer: A) Anti-Rh antibodies to the mother immediately after the delivery of the first child. 26. In which one of the following pairs, two terms represent the same thing? A) Atrioventricular node-Pacemaker. B) Mitral valve-Bicuspid valve. C) Plasma-Serum. D) Lymphocyte-Erythrocyte. Show Answer Correct Answer: B) Mitral valve-Bicuspid valve. 27. The hepatic portal vein carries blood from ..... to the ..... before it is delivered to the systemic circulation A) Liver, intestine. B) Intestine, Liver. C) Intestine, stomach. D) Intestine, Pancrease. Show Answer Correct Answer: B) Intestine, Liver. 28. The ability to generate action potentials without any external stimuli is called- A) Autoexcitability. B) Autorhythmicity. C) Autoextensibility. D) Automaticity. Show Answer Correct Answer: A) Autoexcitability. 29. Prothrombin, which helps in clotting of blood, is released by A) Monocytes. B) Iymphocytes. C) Blood platelets. D) Erythrocyte. Show Answer Correct Answer: C) Blood platelets. 30. Blood, a special type of connective tissue- A) Consists of a fluid matrix (Plasma). B) Has formed elements. C) Is the most commonly used body fluid by most of the higher organisms. D) All. Show Answer Correct Answer: D) All. 31. Plasma without clotting factors is called A) Haemolymph. B) Serum. C) Lymph. D) Interstitial fluid. Show Answer Correct Answer: B) Serum. 32. What is the significance of the atrio-ventricular node (AVN)? A) Delays the electrical impulse. B) Initiates heart contractions. C) Pumps blood to the lungs. D) Regulates blood pressure. Show Answer Correct Answer: A) Delays the electrical impulse. 33. As blood travels from arteries to veins, A) Pressure builds. B) Pressure drops. C) Flow becomes turbulent. D) Diameter of the blood vessels gets progressively smaller. Show Answer Correct Answer: B) Pressure drops. 34. Reduction in pH of blood will: A) Reduce the blood supply to the brain. B) Decrease the affinity of Hb with O2. C) Reduce the rate of heartbeat. D) Release HCO3-ions in the liver. Show Answer Correct Answer: B) Decrease the affinity of Hb with O2. 35. The end of the T wave of standard ECG represents A) End of diastole. B) Beginning of diastole. C) End of systole. D) Beginning of systole. Show Answer Correct Answer: C) End of systole. 36. The blood group that does not contain antibodies in plasma A) O. B) B. C) AB. D) A. Show Answer Correct Answer: C) AB. 37. During the process of blood coagulation, vitamin K helps in A) The conversion of prothrombin to thrombin. B) The formation of prothrombin. C) The formation of thromboplastin. D) The conversion of fibrinogen to fibrin. Show Answer Correct Answer: B) The formation of prothrombin. 38. Ratio of oxyhaemoglobin and haemoglobin in blood is based upon: A) Bicarbonate tension. B) Carbonate tension. C) O2 tension. D) CO2 tension. Show Answer Correct Answer: C) O2 tension. 39. In a healthy adult man, the smallest type of leucocytes are A) Basophils. B) Eosinophils. C) Lymphocytes. D) Monocytes. Show Answer Correct Answer: C) Lymphocytes. 40. As per the guidelines of the Indian Red Cross Society, which of the following persons is recommended for blood donation? A) People not in good health, under the influence of alcohol or drugs. B) Ladies during menstruation, pregnancy and breast feeding. C) Healthy women but unwed and below the age of 35. D) Persons who are immunised with live vaccines. Show Answer Correct Answer: D) Persons who are immunised with live vaccines. 41. The hepatic portal vein drains blood to liver from: A) Heart. B) Stomach. C) Intestine. D) Kidneys. Show Answer Correct Answer: C) Intestine. 42. What is the composition blood? A) Plasma. B) Fluid matrix. C) Formed elements. D) All of the above. Show Answer Correct Answer: D) All of the above. 43. Which WBCs secrete histamine and serotonin? A) Basophils. B) Eosiniphils. C) Neutrophils. D) Monocytes. Show Answer Correct Answer: A) Basophils. 44. Fill the correct option for (i) and (ii). Open circulatory system is present in (i) and (ii). A) (i)-platyhelminthes (ii)-molluscs. B) (i)-annelids (ii)-arthropods. C) (i)-arthropods (ii)-molluscs. D) (i)-arthropods (ii)-platyhelminthes. Show Answer Correct Answer: C) (i)-arthropods (ii)-molluscs. 45. What is the relationship between cholesterol with blood pressure? A) It increases metabolic rate and in turn increases blood pressure. B) It decreases metabolic rate and in turn increases blood pressure. C) It deposits over the wall of arteries and decreases blood pressure. D) It deposits in the arteries and increase blood pressure. Show Answer Correct Answer: D) It deposits in the arteries and increase blood pressure. 46. What is the significance of the atrioventricular node? A) Initiates heart contractions. B) Produces red blood cells. C) Delays the electrical impulse. D) Regulates blood pressure. Show Answer Correct Answer: C) Delays the electrical impulse. 47. A sample of blood shows clumping with antiserum A but bot with antiserum B . the blood group is: A) AB. B) O. C) A. D) B. Show Answer Correct Answer: C) A. 48. S 1-A healthy person has 12-16 gms of haemoglobin in every 1 L of blood.S 2-Hemoglobin molecule contain Iron. A) S 1 and S 2 are true. B) S 1 and S 2 are false. C) S 1 is true but S 2 is false. D) S 1 is false but S 2 is true. Show Answer Correct Answer: D) S 1 is false but S 2 is true. 49. Which of the following animals has two different circulatory pathways: A) Frog. B) Lizard. C) Whale. D) Shark. Show Answer Correct Answer: C) Whale. 50. The cells involved in inflammatory reactions are A) Lymphocytes. B) Eosinophils. C) Basophils. D) Neutrophils. Show Answer Correct Answer: B) Eosinophils. 51. Choose the appropriate option for WBCs with correct properties-I. They are nucleated ll. They are non-nucleated like RBC. III. They are 6000-8000 cm$^{-3}$ of blood. IV. They are long lived V . They are short-lived A) L, III and V. B) Ll, IV and V. C) L, IV and V. D) I and V. Show Answer Correct Answer: D) I and V. 52. If the systolic pressure is 120 mm Hg and diastolic pressure is 80 mm Hg, the pulse pressure is A) 120-80 = 40 mmHg. B) 120/80 = 1.5 mmHg. C) 120 + 80 = 200 mmHg. D) 120 x 80 = 9600 mmHg. Show Answer Correct Answer: A) 120-80 = 40 mmHg. 53. Compared to blood our lymph has A) Plasma without proteins. B) More WBCs and no RBCs. C) More RBCs and less WBCs. D) No plasma. Show Answer Correct Answer: B) More WBCs and no RBCs. 54. The normal platelet count in human blood is: A) 50, 000 to 150, 000 platelets per microliter. B) 150, 000 to 450, 000 platelets per microliter. C) 450, 000 to 600, 000 platelets per microliter. D) 100, 000 to 300, 000 platelets per microliter. Show Answer Correct Answer: B) 150, 000 to 450, 000 platelets per microliter. 55. Pulmonary circulation involves blood flow from the heart to the lungs and back. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 56. Right atrium receives blood from A) Pulmonary aorta. B) Pulmonary veins. C) Superior and inferior vena cava. D) Inferior vena cava only. Show Answer Correct Answer: C) Superior and inferior vena cava. 57. Most of our cells are surrounded by A) Pure water. B) Blood. C) Fluid equivalent to seawater in salt composition. D) Interstitial fluid. Show Answer Correct Answer: D) Interstitial fluid. 58. A person with blood group B receives a transfusion. Which donor groups are compatible to avoid agglutination? A) Group A and group O donors. B) Group B and group O donors. C) Group AB and group B donors. D) Group O and group AB donors. Show Answer Correct Answer: B) Group B and group O donors. 59. Agranulocytes responsible for immune response of the body are A) Neutrophils. B) Eosinophils. C) Basophils. D) Lymphocytes. Show Answer Correct Answer: D) Lymphocytes. 60. Most abundant cells of Blood are- A) Erythrocytes. B) Platelets. C) Monocytes. D) Neutrophils. Show Answer Correct Answer: A) Erythrocytes. ← 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 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 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