Perpsin:
1. It is secreted from the gastric glands of stomach.
2. It is secreted in inactive form called pepsinogen.
3. It acts on protein and converts them into proteoses and peptones.
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4. It catalyses in acidic medium.
Trypsin:
1. It is secreted from the exocrine pancreas.
2. It is secreted in inactive form called trypsinogen.
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3. It acts on proteoses and peptones and converts them into polypeptides.
4. It catalyses in alkaline medium.