1.

The site of action and substrate of rennin are respectivelyA. mouth and starchB. small intestine and proteinC. stomach and caseinD. stomach and fat.

Answer» Correct Answer - C
In stomach, rennin acts on casein (milk protein) and paracasein is converted into calcium paracaseinate, ultimately leading to milk coagulation .
`"Casein"overset("Rennin")to "Paracasein" overset(CA^(2))to underset(("Milk coagulation"))"Calcium paracaseinate"`


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