This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 561 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 561 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the color of veins in the model to indicate deoxygenation? A) Blue. B) Red. C) Green. D) Yellow. Show Answer Correct Answer: A) Blue. 2. This artery serves blood to most body cells and tissues A) Aorta. B) Renal artery. C) Vena cava. D) Oops oops. Show Answer Correct Answer: A) Aorta. 3. Which of the following is not part of the excretory system? A) Liver. B) Lungs. C) Skin. D) Heart. Show Answer Correct Answer: D) Heart. 4. Which of the following structures brings blood back from the lungs to the heart? A) Pulmonary Veins. B) Pulmonary Artery. C) Systemic Veins. D) Systemic Arteries. Show Answer Correct Answer: A) Pulmonary Veins. 5. What is the reagent used to check for the presence of vitamin C A) Benedicts reagent. B) Ethanol. C) DCPIP solution. D) Iodine solution. Show Answer Correct Answer: C) DCPIP solution. 6. Which layer makes up the LARGEST percentage of blood? A) Plasma. B) Erythrocytes. C) Buffy Layer. D) None of above. Show Answer Correct Answer: A) Plasma. 7. ..... are the largest blood vessel that carry deoxygenated blood back to the heart. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: B) Veins. 8. The heart is muscular pump in the size of your ..... A) Fingers. B) Foot. C) Fist. D) Head. Show Answer Correct Answer: C) Fist. 9. A type of blood vessel that carries oxygen-rich blood AWAY from the heart to the rest of the body. A) Artery. B) Vein. C) Capillary. D) Heart. Show Answer Correct Answer: A) Artery. 10. What keeps blood from flowing back into the heart chamber? A) Valve. B) Arteries. C) Aorta. D) None of above. Show Answer Correct Answer: A) Valve. 11. Carries oxygen to the heart and takes carbon dioxide out A) Red blood cells. B) White blood cells. Show Answer Correct Answer: A) Red blood cells. 12. Is the vessel that transports the blood from the lungs to the heart. A) Inferior Vena Cava. B) Superior Vena Cava. C) Pulmonary Artery. D) Pulmonary Vein. Show Answer Correct Answer: D) Pulmonary Vein. 13. Somebody cooks meal every day. A) Active. B) Passive. Show Answer Correct Answer: A) Active. 14. Flow of blood to and from the tissues of the heart A) Coronary circulation. B) Systemic circulation. C) Pulmonary circulation. D) Blood pressure. Show Answer Correct Answer: A) Coronary circulation. 15. An individual's blood type is determined by A) Environment. B) Genetics. C) Both environment and genetics. D) Your children's blood type. Show Answer Correct Answer: B) Genetics. 16. How long does it take for all of the blood to circulate one time through the body? A) 1 minute. B) 5 minutes. C) 1 hour. D) 1 day. Show Answer Correct Answer: A) 1 minute. 17. What is the name of the molecule formed when oxygen binds to haemoglobin? A) Oxyhaemoglobin. B) Oxygen-haemoglobin. C) Carbaminohaemoglobin. D) Oxyglobin. Show Answer Correct Answer: A) Oxyhaemoglobin. 18. The blood circuit that carries blood to and from the lungs is called the ..... A) Portal circuit. B) Systemic circuit. C) Pulmonary circuit. D) Renal circuit. Show Answer Correct Answer: C) Pulmonary circuit. 19. What is the mean of these numbers? 4, 5, 5, 2, 3, 3, 2, 8 A) 40. B) 24. C) 4. D) 256. Show Answer Correct Answer: C) 4. 20. What substance found in red blood cells is responsible for carrying oxygen? A) Plasma. B) Platelets. C) Haemoglobin. D) White blood cells. Show Answer Correct Answer: C) Haemoglobin. ← 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