This quiz works best with JavaScript enabled. Home > Class 11 > 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 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In the heart, the right atrium receives blood from which part of the body? A) Systemic circulation. B) Pulmonary circulation. C) Coronary circulation. D) Hepatic circulation. Show Answer Correct Answer: D) Hepatic circulation. 2. Assertion:Prothrombin enzyme act as antiheparin. Reason:Heparin prevent coagulation of blood in blood vessels. 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: B) Both assertion and reason are true but reason is not correct explanation of assertion. 3. Human heart is ..... in origin A) Ectoderm. B) Endoderm. C) Mesoderm. D) Cardioderm. Show Answer Correct Answer: C) Mesoderm. 4. What type of circulatory system do vertebrates possess? A) Open circulatory system. B) Closed circulatory system. C) Lymphatic system. D) Dual circulatory system. Show Answer Correct Answer: B) Closed circulatory system. 5. Which of the following statements is wrong about the closed circulatory system? A) Blood remains within blood vessels and never comes in direct contact with the body cells. B) In it, the flow of fluid can be more precisely regulated. C) There is no blood capillary. D) Blood flow is more rapid due to higher pressure. Show Answer Correct Answer: C) There is no blood capillary. 6. Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound in heard when A) AV node receives signal from SA node. B) AV valves open up. C) Ventricular walls vibrate due to gushing in of blood from atria. D) Semilunar valves close down after the blood flows into vessels from ventricles. Show Answer Correct Answer: D) Semilunar valves close down after the blood flows into vessels from ventricles. 7. An Rh-ve person, who has not exposed to Rh+ve blood- A) Will form specific antibodies against the Rh antigens. B) Will not form specific antibodies against the Rh antigens. C) Based on environment conditions. D) None of the above. Show Answer Correct Answer: B) Will not form specific antibodies against the Rh antigens. 8. Excessively high heart rate (>180) can reduce cardiac output because A) Blood is moving too fast through the lungs to pick up enough oxygen. B) It tries out the heart muscles and so they pump slower. C) It reduces the time for ventricular filling which reduces stroke volume. D) The PR-interval increases which leads to longer ventricular diastole and shorter ventricular systole. Show Answer Correct Answer: C) It reduces the time for ventricular filling which reduces stroke volume. 9. How do parasympathetic neural signals affect the working of the heart? ..... A) Both heart rate and cardiac output increase. B) Heart rate decreases but cardiac output increases. C) Reduce both heart rate and cardiac output. D) Heart rate is increased without affecting the cardiac output. Show Answer Correct Answer: C) Reduce both heart rate and cardiac output. 10. Assertion:Fibrins are produced by the conversion of fibrinogen in the presence of enzyme, thrombin. Reason:Plasma without fibrinogen and blood corpuscles is serum. 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. 11. "P" wave in ECG occurs before: A) End of arterial contraction. B) Beginning of atrial contraction. C) Onset of ventricular contraction. D) None of the above. Show Answer Correct Answer: C) Onset of ventricular contraction. 12. The time duration between dub and lub in a cardiac cycle- A) 0.3 sec. B) 0.1 sec. C) 0.8 sec. D) 0.5 sec. Show Answer Correct Answer: D) 0.5 sec. 13. Weight of adult human heart is: A) 300-350gm. B) 250-300gm. C) 350-400gm. D) 200-250gm. Show Answer Correct Answer: B) 250-300gm. 14. Arrange the blood vessel in decreasing order of their thickness. A) Vein > Artery > Capillary. B) Vein > Capillary > Artery. C) Artery > Capillary > Vein. D) Artery > Vein > Capillary. Show Answer Correct Answer: D) Artery > Vein > Capillary. 15. A person can receive blood only from a donor of his/ her blood group if the blood group of this person is- A) O. B) AB. C) A or B. D) A, B, AB, or O. Show Answer Correct Answer: A) O. 16. The other name of Lymph is A) Tissue Fluid. B) Middle man of the body. C) Interstitial fluid. D) All of the above. Show Answer Correct Answer: D) All of the above. 17. Left side of the heart is high in A) O2. B) CO2. C) N. D) H. Show Answer Correct Answer: A) O2. 18. Which condition is characterized by persistently elevated arterial blood pressure that can damage the heart, brain, and kidneys? A) Atherosclerosis. B) Hypertension. C) Angina pectoris. D) Heart failure. Show Answer Correct Answer: B) Hypertension. 19. What does an electrocardiogram (ECG) measure? A) Heart electrical activity. B) Oxygen levels. C) Blood pressure. D) Blood flow. Show Answer Correct Answer: A) Heart electrical activity. 20. Which chamber of the heart receives deoxygenated blood? A) Left ventricle. B) Right atrium. C) Right ventricle. D) Left atrium. Show Answer Correct Answer: B) Right atrium. 21. (1) Arteries are thick-walled and have narrow lumen as compared to veins(2) Angina is acute chest pain when the blood circulation to the brain is reduced(3) Persons with blood group AB can donate blood to any person with any blood group under the ABO system(4) Calcium ions play a very important role in blood clotting.Which two of the above statements are correct? A) And (4). B) And (2). C) And (3). D) And (4). Show Answer Correct Answer: A) And (4). 22. Which of the following blood groups is a universal recipient in blood transfusion? A) Group AB. B) Group B. C) Group O. D) Group A. Show Answer Correct Answer: A) Group AB. 23. Which human blood group system classifies types based on the presence or absence of A and B surface antigens on RBCs? A) MN system. B) Rh system. C) ABO system. D) HLA system. Show Answer Correct Answer: C) ABO system. 24. First heart sound is A) Lubb sound at the end of systole. B) Lubb sound at the beginning of ventrical systole. C) Dup sound at the end of systole. D) Dup sound at the beginning of ventrical systole. Show Answer Correct Answer: B) Lubb sound at the beginning of ventrical systole. 25. Blood of AB group cannot be given to B group patient because A) Patient has antibodies B. B) Patient lacks antibodies B. C) Patient lacks antibodies A. D) Patient has antibodies A. Show Answer Correct Answer: D) Patient has antibodies A. ← PreviousNext →Related 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 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 10Class 11 Biology Chapter 18 Body Fluids And Circulation Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books