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Enzyme renin is secreted by

1. Cells of stomach
2. Cells of intestine
3. The cortical cells of kidney
4. The cells of juxtaglomerular apparatus of kidney

Correct answer: The cells of juxtaglomerular apparatus of kidney

Solution

Renin is produced by juxtaglomerular (granular) cells in the juxtaglomerular apparatus of the kidney. These cells release renin in response to low renal perfusion, low sodium delivery, or sympathetic stimulation.

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