Which Proteolytic enzyme is NOT secreted in inactive form?
Correct answer: D. Erypsin
- A. Chymotrypsin
- B. Pepsin
- C. Trypsin
- D. Erypsin
Explanation
Pepsin is an enzyme that is secreted in an inactive form known as pepsinogen. It becomes active when exposed to the acidic environment of the stomach.Trypsin is secreted in inactive form trypsinogen and is activated by enterokinase.Chymotrypsin is secreted in inactive form chymotrypsinogen and is activated by enterokinase.However, erypsin is not secreted in inactive form.
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Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.
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