Which one of the following enzymes carries out the initial step in the digestion of milk in humans?
A
Pepsin
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B
Rennin
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C
Lipase
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D
A and B
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Solution
The correct option is C A and B Pepsin acts on the milk protein (casein) and converts it into paracasein and initiates its digestion in the stomach. Rennin promotes this process and hydrolyses the casein into paracasein.