Biology Practice: Excretory System (Mock Test 3 - Advanced Processes & Mechanisms)
1. What is the fundamental physiological reason for "Ultrafiltration" occurring in the Malpighian Capsule?
2. Which of the following is NOT found in the "Glomerular Filtrate" under normal physiological conditions?
3. "Selective Reabsorption" primarily occurs in the Proximal Convoluted Tubule (PCT). Which mechanism is used to reabsorb glucose completely?
4. What is the effect of "ADH (Anti-diuretic Hormone)" on the Distal Convoluted Tubule (DCT) and Collecting duct?
5. "Tubular Secretion" is a process where certain substances like $K^+$ and $H^+$ ions are removed from the blood and added to the:
6. The term "Osmoregulation" specifically refers to the mechanism of maintaining:
7. Why does urine output increase during winter (Diuresis)?
8. In a clinical case of "Diabetes Mellitus," glucose is found in urine (Glycosuria) because:
9. Which mechanism describes the process of "Deamination" in the liver?
10. The condition "Haematuria" refers to the presence of _____ in the urine.
11. Which part of the kidney tubule is primarily responsible for generating an osmotic gradient in the medulla?
12. What is the outcome of "Dialysis" (Artificial Kidney) for a patient with kidney failure?
13. Which nitrogenous waste is extremely toxic and requires a large amount of water for its removal, usually found in aquatic animals?
14. The term "Renal Calculi" refers to the clinical condition of:
15. Why does the "Efferent Arteriole" have a narrower lumen?
16. "Diabetes Insipidus" is an advanced clinical disorder caused by the deficiency of:
17. In which part of the nephron does the "Descending limb" allow the passage of water into the medulla but is impermeable to salts?
18. The concentration of urea is highest in which blood vessel?
19. "Albuminuria" is a condition indicating the presence of _____ in urine, suggesting a leak in the glomerulus.
20. What is the physiological sequence of urine formation?
