This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 694 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 694 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What blood vessel is the smallest, is one cell thick and connects the other two blood vessels? A) Vein. B) Capillary. C) Artery. D) None of above. Show Answer Correct Answer: B) Capillary. 2. What happens to your pulse rate when you exercise? A) Increases. B) Stays the same. C) Decreases. D) Falls to zero. Show Answer Correct Answer: A) Increases. 3. What is the function of a WBC? A) Destroy microorganisms. B) Carries oxygen. C) Carries blood to the heart. D) Ensures blood flow in only one direction. Show Answer Correct Answer: A) Destroy microorganisms. 4. The artery that is a continuation of the axillary artery is called: A) Subclavian artery. B) Brachial artery. C) Carotid artery. D) Phrenic artery. Show Answer Correct Answer: B) Brachial artery. 5. Artery go in the heart A) True. B) False. Show Answer Correct Answer: B) False. 6. What is the iron pigment in Red blood cells that helps transport oxygen A) Iron. B) Copper. C) Oxygen. D) Haemoglobin. Show Answer Correct Answer: D) Haemoglobin. 7. The movement of materials in this system is slow A) Closed transport system. B) Open transport system. C) Circulatory system. D) Blood. Show Answer Correct Answer: B) Open transport system. 8. What are the four main components of blood? A) Red blood cells, white blood cells, platelets, plasma. B) Blood cells, pathogens. C) Plasma, bone marrow, white blood cells. D) White blood cells, red blood cells. Show Answer Correct Answer: A) Red blood cells, white blood cells, platelets, plasma. 9. Blood travelling from the heart to the body cells is A) Oxygen rich and carbon dioxide poor. B) Oxygen rich and carbon dioxide rich. C) Oxygen poor and carbon dioxide poor. D) Oxygen poor and carbon dioxide rich. Show Answer Correct Answer: A) Oxygen rich and carbon dioxide poor. 10. Cacti have fewer stomata than other plants.How does this help them to survive in desert conditions? A) A It increases loss of water. B) B It increases uptake of carbon dioxide. C) C It reduces loss of water. D) D It reduces uptake of carbon dioxide. Show Answer Correct Answer: C) C It reduces loss of water. 11. The wall divide the left and the right part of the heart called ..... A) Vein. B) Valve. C) Artery. D) Septum. Show Answer Correct Answer: D) Septum. 12. What do we call the '' blue" part of the heart? A) Vein. B) Arteries. C) Capillaries. D) None of above. Show Answer Correct Answer: A) Vein. 13. Aorta carries blood from the left ventricle to the ..... A) Lungs. B) Body. Show Answer Correct Answer: B) Body. 14. The muscular middle layer of the heart is the A) Pericardium. B) Endocardium. C) Myocardium. D) Septum. Show Answer Correct Answer: C) Myocardium. 15. What is involuntary contractions of voluntary muscles to warm up? A) Shivering. B) Sweating. C) Vasodilation. D) Vasoconstriction. Show Answer Correct Answer: A) Shivering. 16. Which statement best describes how a multicellular organism survives? A) Every cell carries out the same functions for the survival of the organism. B) The cells all have the same structures that allow the organism to survive. C) All life processes are performed by each cell for the survival of the organism. D) The cells have different functions, and together they are essential for the survival of the organism. Show Answer Correct Answer: D) The cells have different functions, and together they are essential for the survival of the organism. 17. Physician who discovered stethoscope..... A) Rene Antony Rene Antony. B) Rene Laennec Rene Laennec. C) Cardiac lennec Cardiac lennec. D) None of the above. Show Answer Correct Answer: B) Rene Laennec Rene Laennec. 18. Which item has a different function than the other items? A) Mitral valve. B) Bicuspid valve. C) Atrioventricular valve. D) Pulmonary Semilunar valve. Show Answer Correct Answer: D) Pulmonary Semilunar valve. 19. People with Type O blood can receive blood from anyone. A) True. B) False. Show Answer Correct Answer: B) False. 20. What is the purpose of coronary arteries? A) Deliver oxygen and glucose to the heart. B) Transport nutrients to the lungs. C) Carry deoxygenated blood to the heart. D) None of the above. Show Answer Correct Answer: A) Deliver oxygen and glucose to the heart. ← 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