Digestion and AbsorptionHard

Question

Which of the following enzymes carries out the initial step in the digestion of milk in humans ?

Options

A.Rennin
B.Lipase
C.Trypsin
D.Pepsin

Solution

In human milk protein digesting enzyme in stomach is pepsin. In calves it is renin. It is alsopresent in a small amounts in human infants but not adults. Pepsin acts on water soluble′caseinogen′ (milk protein) to from soluble ′casein′. This combines with calcum salts tofrom insoluble calcium paracaseninate, which gets readily digested enzymatically.

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