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B
Peptones
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C
Starch
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D
Fat
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Solution
The correct option is A Trypsinogen
Pepsinogen proenzyme is released by the chief cells in the stomach wall, and upon mixing with the hydrochloric acid of the gastric juice, pepsinogen activates to become pepsin.
Trypsinogen is present in the pancreas and released in significant amount when required for protein digestion. Trypsinogen is in an inactive form which is converted to active form trypsin. Hence, trypsinogen is same as pepsinogen.