This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 164 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 164 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The respiratory system works together with the circulatory system to ensure all parts of our body receive enough oxygen. A) True. B) False. Show Answer Correct Answer: A) True. 2. Which of the following has nucleus present in them? A) WBC. B) Platelets. C) Both A and B. D) None of above. Show Answer Correct Answer: A) WBC. 3. The fluid in which other parts of the blood are suspended A) Platelets. B) Blood. C) Plasma. D) Hemoglobin. E) White Blood Cells. Show Answer Correct Answer: C) Plasma. 4. The force applied to arterial walls as the heart pumps blood is called A) Blood pressure. B) Viscosity. C) Resistance. D) Blood volume. Show Answer Correct Answer: A) Blood pressure. 5. What is the main job of the heart? A) Pumping blood. B) Pumping air. C) Pumping water. D) Pumping blood, air, and water. Show Answer Correct Answer: A) Pumping blood. 6. What is the energy conversion during photosynthesis? A) Chemical $\rightarrow$ chemical. B) Thermal $\rightarrow$ electrical. C) Chemical $\rightarrow$ electrical. D) Radiant $\rightarrow$ chemical. Show Answer Correct Answer: D) Radiant $\rightarrow$ chemical. 7. What can blockage of any of coronary arteries(arteries connected to heart) cause? A) Heart attack. B) Cardiac arrest. C) Death. D) Nothing. Show Answer Correct Answer: A) Heart attack. 8. Nose, windpipe and lungs help us to ..... A) Breathe. B) Digest our foods. C) Help move substances around our body. D) None of above. Show Answer Correct Answer: A) Breathe. 9. Our body has various parts called ..... A) Organ system. B) Organs. C) Sense organs. D) None of above. Show Answer Correct Answer: B) Organs. 10. Blood with carbon dioxide A) Enters the right side of the heart. B) Enters the left side of the heart. C) Enters both the side of the heart. D) Does not enter the heart. Show Answer Correct Answer: A) Enters the right side of the heart. 11. The blood vessel which carries blood to the whole body is called ..... A) Artery. B) Vein. C) Venule. D) Arteriosclerosis. Show Answer Correct Answer: A) Artery. 12. WHICH OF THE FOLLOWING ORGANS PUMPS BLOOD? A) LUNGS. B) HEART. C) ARTERY. D) VEIN. Show Answer Correct Answer: B) HEART. 13. Which of the following part of heart have thicker wall? A) Right atrium. B) Right ventricle. Show Answer Correct Answer: B) Right ventricle. 14. The blood obtains the oxygen from which organ? A) Brain. B) Lungs. C) Heart. D) Stomach. Show Answer Correct Answer: B) Lungs. 15. Heart rate increases during exercise because our muscles need more oxygen to produce energy. A) True. B) False. Show Answer Correct Answer: A) True. 16. Pulmonary veins carries A) Oxygenated blood. B) Deoxygenated blood. C) Mixed blood. D) None. Show Answer Correct Answer: A) Oxygenated blood. 17. Blood vessel that carries oxygenated blood to the body: A) Vein. B) Artery. Show Answer Correct Answer: B) Artery. 18. Which among the following options does not belong to Lower Respiratory Tract? A) Nasal Cavity. B) Trachea. C) Bronchi. D) Lungs. Show Answer Correct Answer: A) Nasal Cavity. 19. Monocytes (general [reserve] phagocytes) deal with..... A) Anything. B) Allergy. C) Worm. D) Bacterial infections (specific). Show Answer Correct Answer: A) Anything. 20. Which component of the blood helps fight disease? A) Plasma. B) Red blood cell. C) Platelet. D) White blood cell. Show Answer Correct Answer: D) White blood cell. ← PreviousNext →Related QuizzesScience QuizzesCirculatory System Quiz 1Circulatory System Quiz 2Circulatory System Quiz 3Circulatory System Quiz 4Circulatory System Quiz 5Circulatory System Quiz 6Circulatory System Quiz 7Circulatory System Quiz 8Circulatory System Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books