This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 22 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What does the heart do for the Circulatory system? tick the correct answer A) Clean food. B) Send messages. C) Pumps blood. D) Remove waste. Show Answer Correct Answer: C) Pumps blood. 2. Which is not a job of the respiratory system? A) Taking in oxygen. B) Taking in carbon dioxide. C) Moisten air. D) Transport glucose. Show Answer Correct Answer: D) Transport glucose. 3. What is the main function of the circulatory system? A) Transport oxygen and nutrients to the body. B) Take carbon dioxide and waste away from body. C) Transport oxygen and nutrients to the body and takes carbon dioxide and waste away from body. D) Move blood. Show Answer Correct Answer: C) Transport oxygen and nutrients to the body and takes carbon dioxide and waste away from body. 4. What is the role of fibrin in blood clotting? A) Acts as an enzyme. B) Forms a mesh of fibres to cover the wound. C) Causes smooth muscles in blood vessels to contract. D) Starts off the whole process. Show Answer Correct Answer: B) Forms a mesh of fibres to cover the wound. 5. What is the function of the red blood cells? A) They absorb oxygen through something called hemoglobin. B) They are just red. C) They heal wounds. D) None of above. Show Answer Correct Answer: A) They absorb oxygen through something called hemoglobin. 6. Is described as chest pain or discomfort. A) Heart Attack. B) Angina. C) Stroke. D) None of above. Show Answer Correct Answer: B) Angina. 7. Through which type of circulation does blood flow to your hands and feet? A) Cardiac circulation. B) Coronary circulation. C) Pulmonary circulation. D) Systemic circulation. Show Answer Correct Answer: D) Systemic circulation. 8. Which of the following has these characteristics:-biconcave shape-no nucleus A) Platelets. B) White blood cells. C) Red blood cells. D) Plasma. Show Answer Correct Answer: C) Red blood cells. 9. Anaemia is a disease that is low in ..... blood cells A) White. B) Red. C) Blue. D) None of above. Show Answer Correct Answer: B) Red. 10. Carbon dioxide is considered a ..... A) Food. B) Waste product. C) Energy. D) Reactant for respiration. Show Answer Correct Answer: B) Waste product. 11. Which of the following parts of the heart are oxygen rich parts? A) All of the arteries. B) Pulmonary veins, left atrium, left ventricle, aorta. C) Vena cava's, right atrium, right ventricle, pulmonary artery. D) Right and left atrium, aorta. Show Answer Correct Answer: B) Pulmonary veins, left atrium, left ventricle, aorta. 12. What type of blood vessels carry blood AWAY from the heart? A) Arteries. B) Capillaries. C) Veins. D) Blood. Show Answer Correct Answer: A) Arteries. 13. Why is the heart special? A) It sends water all over the body. B) It sends blood all over our body. Show Answer Correct Answer: B) It sends blood all over our body. 14. Red blood cells are also known as ..... A) Leukocytes. B) Erythrocytes. C) Monocytes. D) Lymphocyte. Show Answer Correct Answer: B) Erythrocytes. 15. How much a normal heart beats per minute- A) 18. B) 47. C) 109. D) 72. Show Answer Correct Answer: D) 72. 16. I am small fragments of cells, important for blood clotting. A) Plasma. B) Red Blood Cells. C) White Blood Cells. D) Platelets. Show Answer Correct Answer: D) Platelets. 17. Which type of blood vessel returns blood TO the heart A) Artery. B) Vein. C) Capillary. D) Macrophage. Show Answer Correct Answer: B) Vein. 18. How many chambers are there in human heart? A) Three. B) Four. C) One. D) Five. Show Answer Correct Answer: B) Four. 19. Which of the following secretes hormones directly in the blood? A) Bone marrow. B) Endocrine glands. C) Histamine. D) Liver. Show Answer Correct Answer: B) Endocrine glands. 20. Which component of blood transports carbon dioxide? A) Red blood cell. B) Plasma. C) White blood cell. D) Platelets. Show Answer Correct Answer: B) Plasma. ← 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