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BIOLOGICAL CLASSIFICATION Quiz 1

1. 
Descending limb of loop of Henle is_____

2. 
Ascending limb of loop of Henle is_______

3. 
The filtrate is concentrated_____

4. 
In PCT which type of reabsorption occurs?

5. 
Choose the correct option:

A. The collecting duct extends from the medulla of the kidney to the inner cortex.
B. Large amounts of electrolytes could be reabsorbed from the collecting duct to produce concentrated urine.
C. Collecting duct allows passage of a small amount of urea into medullary interstitium.
D. The collecting duct plays a role in the maintenance of pH and the ionic balance of the blood.

6. 
How much percentage of electrolytes and water are reabsorbed by PCT?

7. 
The lining of PCT is made up of which type of epithelium?

8. 
Choose the correct option:

A. Epithelium of PCT of the nephron in the kidney has microvilli.
B. Nearly all of the essential nutrients are reabsorbed by PCT.
C. Nearly 90-95% of electrolytes and water are reabsorbed by PCT.
D. PCT helps to maintain the pH and ionic balance of the body fluids.

9. 
In which of the following part of nephron reabsorption is minimum?

10. 
Ascending limb of the loop of Henle allows the transport of electrolytes____

11. 
PCT helps to maintain pH and ionic balance of the body fluids by______

12. 
The given figure represent Human Urinary System, identify A to E :

13. 
GFR in a healthy individual per minute is approximately____

14. 
In DCT, selective secretion of substances occur except:

15. 
Conditional reabsorption of Na⁺ and water takes place in which part of the nephron?

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