1. The process of excreting ammonia as nitrogenous waste is called:
1. Ureotelism
2. Ammonotelism
3. Uricotelism
4. Excretion
2. Which of the following animals are uricotelic?
1. Mammals and amphibians
2. Aquatic insects and bony fishes
3. Birds and reptiles
4. Marine fishes and earthworms
3. The functional unit of human kidney is:
1. Nephridia
2. Malpighian tubule
3. Nephron
4. Flame cell
4. Which of the following is NOT reabsorbed by PCT?
1. Glucose
2. Amino acids
3. Urea
4. Water
5. The counter current mechanism is maintained by:
1. PCT and DCT
2. Henle's loop and vasa recta
3. Collecting duct and PCT
4. Bowman's capsule and glomerulus
6. Antidiuretic hormone (ADH) is released from:
1. Anterior pituitary
2. Neurohypophysis
3. Adrenal cortex
4. JG apparatus
7. Which part of the nephron is responsible for selective secretion of H+ and K+ ions?
1. PCT
2. DCT
3. Henle's loop
4. Bowman's capsule
8. The ascending limb of Henle's loop is:
1. Permeable to water and electrolytes
2. Impermeable to both water and electrolytes
3. Permeable to water but not electrolytes
4. Impermeable to water but allows electrolyte transport
9. Atrial Natriuretic Factor (ANF) functions by:
1. Increasing blood pressure
2. Causing vasoconstriction
3. Causing vasodilation
4. Stimulating renin release
10. Which of the following processes involves filtration of blood through three distinct layers in the kidney?
1. Tubular secretion
2. Glomerular filtration
3. Reabsorption
4. Micturition
11. The amount of filtrate formed by kidneys per minute is called:
1. Urine formation rate
2. Filtration capacity
3. Glomerular filtration rate
4. Renal clearance rate
12. Which of the following is NOT a characteristic of uricotelic animals?
| 1. |
They excrete uric acid |
| 2. |
They require large amounts of water for excretion |
| 3. |
Include reptiles and birds |
| 4. |
Excrete wastes as pellets or paste |
13. The juxta glomerular apparatus (JGA) primarily functions to:
1. Filter blood
2. Regulate glomerular filtration rate
3. Store urine
4. Secrete ADH
14. Which part of the nephron is responsible for maintaining high osmolarity of medullary interstitial fluid?
1. Proximal convoluted tubule
2. Distal convoluted tubule
3. Loop of Henle
4. Collecting duct
15. What percentage of the filtrate formed in kidneys is reabsorbed by renal tubules?
1. 90%
2. 95%
3. 98%
4. 99%
16. The counter current mechanism in kidneys involves:
1. Only Henle's loop
2. Only vasa recta
3. Both Henle's loop and vasa recta
4. Neither Henle's loop nor vasa recta
17. Cortical nephrons differ from juxtamedullary nephrons in having:
1. Longer loop of Henle
2. Shorter loop of Henle
3. No Bowman's capsule
4. No collecting duct
18. The release of Atrial Natriuretic Factor (ANF) results in:
1. Vasoconstriction
2. Increased blood pressure
3. Vasodilation
4. Increased renin secretion
19. Which of the following is NOT a form of nitrogenous waste in animals?
1. Ammonia
2. Urea
3. Uric acid
4. Creatinine
20. Animals that excrete nitrogenous waste primarily as ammonia are called:
1. Ureotelic
2. Uricotelic
3. Ammonotelic
4. Metanephric
21. Which excretory structure is found in cockroaches?
1. Protonephridia
2. Nephridia
3. Malpighian tubules
4. Green glands
22. The functional unit of human kidney is:
1. Nephron
2. Medulla
3. Cortex
4. Calyx
23. Glomerular Filtration Rate (GFR) in a healthy individual is approximately:
1. 125 ml/minute
2. 180 ml/minute
3. 100 ml/minute
4. 150 ml/minute
24. Which part of the nephron is responsible for conditional reabsorption of Na+ and water?
1. Proximal Convoluted Tubule
2. Distal Convoluted Tubule
3. Loop of Henle
4. Collecting Duct
25. The maximum osmolarity in the inner medulla of kidney is about:
1. 300 mOsmol/L
2. 600 mOsmol/L
3. 900 mOsmol/L
4. 1200 mOsmol/L
26. Which hormone facilitates water reabsorption from latter parts of renal tubule?
1. Aldosterone
2. Renin
3. ADH
4. ANF
27. The Juxtaglomerular Apparatus (JGA) releases:
1. Aldosterone
2. Renin
3. ADH
4. Angiotensin
28. Which of these is NOT involved in regulation of kidney function?
1. Hypothalamus
2. JGA
3. Heart
4. Thyroid
29. The percentage of filtrate that is reabsorbed by renal tubules is approximately:
1. 90%
2. 95%
3. 99%
4. 85%
30. Which blood vessels form the vasa recta?
1. Afferent arteriole
2. Efferent arteriole
3. Peritubular capillaries
4. Renal artery
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Selected Qs - Excretory Products and their Elimination - NCERT Exemplar Converted to MCQsContact Number: 8527521718