In the process of digestion, the enzymes at location 'X' and location 'Y' are such that 'X' converts proteins into protease and 'Y' converts peptones into peptides. Identify X and Y.

Chymotrypsin and pepsin

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Pepsin and trypsin

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Ptyalin and pepsin

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trypsin and dipeptidase

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Solution

The correct option is B Pepsin and trypsin
During digestion of food, proteins are digested by their breakdown into peptones and proteases and finally into peptides. In the given situation, 'X' is pepsin (an enzyme of the stomach which gets activated by HCl). This enzyme converts proteins into peptones at pH 1-3. The enzyme 'Y' is trypsin (an enzyme secreted by the pancreas). It converts the peptones into peptides.

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