Biology Practice: Excretion in Humans (Mock Test 5 - Ultimate Comprehensive)
1. The primary nitrogenous waste product excreted by humans is:
2. Which of these organs is NOT part of the human urinary system?
3. The structural and functional units of the kidney are called:
4. The dark-colored outer zone of the kidney is the:
5. Urine is carried from the kidneys to the urinary bladder by the:
6. Ultra-filtration occurs in which part of the nephron?
7. Useful substances like glucose and salts are taken back into the blood during:
8. The process of using a machine to filter blood in case of kidney failure is:
9. Sweat consists of water, salts, and a small amount of:
10. The yellowish color of urine is due to the pigment:
11. Which organ removes carbon dioxide and water vapor from the body?
12. The cup-shaped part of the nephron is the:
13. The maintenance of water and salt balance in the body is called:
14. Which arteriole is narrower, leading to high pressure in the glomerulus?
15. The expulsion of urine from the bladder is controlled by ________ muscles.
16. Ammonia is converted into urea in which organ?
17. Kidney stones are primarily composed of:
18. The funnel-shaped space where urine collects before entering the ureter is the:
19. In a nephron, the Glomerulus is a network of:
20. Which hormone helps in the reabsorption of water in the kidneys?