Single Choice

The part of nephron involved in active reabsorption of sodium is

ABowman's capsule
BDescending limb of Henle's loop
CDistal convoluted tubule
DProximal convoluted tubule
Correct Answer

Solution

Sodium reabsorption occurs through tubular reabsorption in proximal and distal convoluted tubules only. The proximal convoluted tubule is involved in active reabsorption of sodium into the peritubular capillary network and passive flow of water flows. It accounts for 67% of sodium reabsorption. DCT reabsorption of sodium is also an active process but is under hormonal regulation i.e., conditional response.

Therefore, the correct answer is option D.

SIMILAR QUESTIONS

Animal Physiology: Circulation and Excretion

Removal of proximal convoluted tubule from the nephron will result in

Animal Physiology: Circulation and Excretion

Indicate whether the given statement is true or false. Glucose is actively reabsorbed in the proximal convoluted tubule.

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Select the correct option representing the parts of nephron that respectively absorb (i) Glucose, (ii) Amino acids, (iii) Inorganic ions $$(Na^{+}\, , k^{+}\,, Cl^{-})$$ and (iv) Urea in maximum

Animal Physiology: Circulation and Excretion

Which of the following statements are correct? (i) Re-absorption of water occurs passively in the initial segment of nephron. (ii) Nitrogenous wastes are absorbed by passive transport. (iii) Conditional re-absorption of $$Na^{+}$$ and water takes place in DCT. (iv) DCT reabsorbs $$HCO_{3}$$ (v) DCT is capable of selective secretion of $$H^{+}$$ , $$K^{+}$$, and $$NH_{3}$$ to maintain $$pH$$ and $$Na^{+} - K^{+}$$ balance in blood.

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