Biology Practice: Excretion in Humans (Mock Test 2 - Intermediate)
1. Which blood vessel brings nitrogenous waste-loaded blood into the kidney?
2. The process of filtering blood under high pressure in the Bowman's capsule is called:
3. Where does most of the "Selective Reabsorption" of useful substances occur in the nephron?
4. Which of the following should NOT be present in the urine of a healthy person?
5. The "Hilum" is a notch on the inner concave side of the kidney through which:
6. The medulla of the kidney is divided into several cone-shaped masses called:
7. Which part of the kidney continues as the ureter?
8. What is the primary function of "Osmoregulation"?
9. Which organ is responsible for converting highly toxic ammonia into less toxic urea?
10. The diameter of the 'efferent arteriole' is ________ than the 'afferent arteriole' to create pressure.
11. Renal failure leads to the accumulation of urea in the blood, a condition known as:
12. Which constituent of urine increases significantly if a person consumes a very high-protein diet?
13. Besides metabolic wastes, what else is excreted by the skin?
14. The clean blood (after filtration) leaves the kidney through the:
15. Kidney stones (Renal Calculi) are often caused by the accumulation of:
16. The Malpighian Corpuscle consists of:
17. Urine output increases in winter because:
18. The act of expelling urine from the urinary bladder is called:
19. Which of the following is an "accessory" excretory organ?
20. What is the approximate length of an adult human kidney?