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Question

Inactive enzyme precursors, such as pepsinogen for pepsin are called as

A
Holoenzymes
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B
Actinases
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C
Zymogens
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D
Mucopolysaccharides
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Solution

The correct option is C Zymogens
A zymogen (or proenzyme) is an inactive enzyme precursor. A zymogen requires a biochemical change (such as a hydrolysis reaction revealing the active site, or changing the configuration to reveal the active site) for it to become an active enzyme.
Zymogen, also called as proenzyme, any of a group of proteins that display no catalytic activity but are transformed within an organism into enzymes, especially those that catalyze reactions involving the breakdown of proteins.
Therefore, the correct answer is option C.

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