Why Did Scientists Originally Hypothesize That Proteolytic Enzymes Such as Pepsin

question 48

Multiple Choice

Why did scientists originally hypothesize that proteolytic enzymes such as pepsin and trypsin are secreted in inactive form?

• A) These proteolytic enzymes, in active form, would digest the very tissues that synthesize them.
• B) They identified the hormone that activates pepsin and trypsin.
• C) The stomach is too acidic to maintain these enzymes in their active form.
• D) Pepsin and trypsin have never been isolated in their fully activated form.

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