Which of the following causes an increase in sodium reabsorption in the distal convoluted tubule?

Which of the following causes an increase in sodium reabsorption in the distal convoluted tubule?
  1. Increase in aldosterone levels
  2. Decrease in antidiuretic hormone levels
  3. Decrease in aldosterone levels
  4. Increase in antidiuretic hormone levels

Solution

Sodium absorption by the distal tubule is mediated by the hormone aldosterone. Aldosterone increases sodium reabsorption. Aldosterone is secreted by zona glomerulosa of adrenal cortex and also known as salt retaining hormone.

Asked in: NEET 2014

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