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Question

Who confirmed protein nature of enzymes?

A
Monod et al
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B
Arber et al
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C
Berzelius
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D
Northrop
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Solution

The correct option is C Northrop
The proteinous nature of enzyme was proved by Sumner, John Howard Northrop, and Wendell Meredith Stanley. Enzymes are proteins which help to catalyze the biochemical reaction. The enzyme has a protein part which is not active is known as apoenzyme. It gets activated by the addition of an organic or inorganic cofactor. The holoenzyme is defined as apoenzyme in combination with the cofactor.
So, the correct answer is option D.

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