This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 522 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 522 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which component of blood is the liquid part of blood? A) Red Blood Cells. B) White Blood Cells. C) Platelets. D) Plasma. Show Answer Correct Answer: D) Plasma. 2. Which component of blood helps to fight germs? A) Plasma. B) Red blood cells. C) Platelets. D) White blood cells. Show Answer Correct Answer: D) White blood cells. 3. An important part of the heart that prevents blood from flowing backward. It allows blood to move in only one direction. A) Left Ventricle. B) Valve. C) Right Atrium. D) Capillary. Show Answer Correct Answer: B) Valve. 4. Is to carry impulses between the body and the central system, causing the voluntary (or chosen) and involuntary (or automatic) reactions you experience A) Central Nervous System. B) Peripheral Nervous System. C) Brain Stem System. D) Democracy. Show Answer Correct Answer: B) Peripheral Nervous System. 5. Which of the following carries blood AWAY from the heart? A) Atrium. B) Ventricle. C) Artery. D) Vein. Show Answer Correct Answer: C) Artery. 6. The human body has specialized cells, such as white blood cells, to help protect it from many diseases. Describe what these specialized cells do to protect the body from the disease. A) They carry oxygen. B) They fight and destroy germs. C) They give blood its color. D) They clot when we get a cut. Show Answer Correct Answer: B) They fight and destroy germs. 7. The human circulatory system has two loops. Which loop takes blood from the heart to the lungs and back? A) Pulmonary loop. B) Coronary loop. C) Systemic loop. D) Systolic loop. Show Answer Correct Answer: A) Pulmonary loop. 8. What's the name of the circuit that transports oxygenated blood? A) Systemic circuit. B) Aortic circuit. C) Lymphatic circuit. D) Pulmonary circuit. Show Answer Correct Answer: A) Systemic circuit. 9. In what form is most carbon dioxide transported by the blood? A) As dissolved carbon dioxide. B) As hydrogencarbonate ions. C) As carbaminohaemoglobin. D) As carboxyhaemoglobin. Show Answer Correct Answer: B) As hydrogencarbonate ions. 10. Which chamber of the heart pumps deoxygenated blood to the lungs? A) Left ventricle. B) Left atrium. C) Right ventricle. D) Right atrium. Show Answer Correct Answer: C) Right ventricle. 11. Blood clotting is a mechanism that heals wounds, prevents blood loss and subsequently maintains the blood pressure. A) True. B) False. Show Answer Correct Answer: A) True. 12. This part of the heart separates the left and right heart chambers. A) Mitral valve. B) Septum. C) Aortic valve. D) Inferior vena cava. Show Answer Correct Answer: B) Septum. 13. The circulatory system is composed of blood vessels that travel from the heart to the rest of the body and back to the heart. Why does blood make a complete loop throughout the body? A) So blood can fill all internal organs. B) So blood can distribute tat to all of the arteries. C) To carry nutrients throughout the body and remove waste. D) So carbon dioxide and wastes can be circulated throughout the body. Show Answer Correct Answer: C) To carry nutrients throughout the body and remove waste. 14. The main function of the circulatory system is to ..... around the body A) Transport blood. B) Transport wastes. C) Transport wastes and nutrients. D) Transport material. Show Answer Correct Answer: D) Transport material. 15. Vessels that carry blood back to the heart A) Veins. B) Capillaries. C) Arteries. D) None of above. Show Answer Correct Answer: A) Veins. 16. Plasma contains ..... percent water and ..... percent nutrients, proteins and waste products A) 10, 90. B) 85, 15. C) 90, 10. D) 75, 225. Show Answer Correct Answer: C) 90, 10. 17. Your heart pumps blood around your body for 22 hours a day A) False. B) True. Show Answer Correct Answer: A) False. 18. What substance do living things need to stay healthy? A) Nutrients. B) Waste. C) Carbon dioxide. D) None of above. Show Answer Correct Answer: A) Nutrients. 19. Which carries oxygen-poor blood back to the heart? A) Arteries. B) Veins. C) Capillaries. D) Platelets. Show Answer Correct Answer: B) Veins. 20. Which of the following helps in maximum transport of oxygen? A) RBC. B) WBC. C) Plasma. D) Platelets. Show Answer Correct Answer: A) RBC. ← 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