EXCRETORY SYSTEM
KIDNEY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The cells in walls of the pct have
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microvilli
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many mitochondria
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basal invaginations
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all of these adaptations
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Explanation:
Detailed explanation-1: -The PCT is responsible for reabsorbing 50–60% of the glomerular ultrafiltrate. Thus, it is a site for high volume reabsorption, but not for regulation of the final composition of the urine. The latter task is the responsibility of the collecting duct.
Detailed explanation-2: -Epithelial cells in the proximal convoluted tubule (PCT) reabsorb components of the glomerular filtrate that have nutritional significance (e.g., glucose, ions and amino acids). To facilitate absorption, these cells have numerous microvilli, Mv, along their apical surface.
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