NEET UG BIOLOGY MCQ: BIOMOLECULES

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Which of the following statements about enzymes are correct?
I. Enzymes do not alter the overall change in free energy for a reaction
II. Enzymes are highly specific for reactions
III. The energy input needed to start a chemical reaction is called activation energy
IV. Enzymes are proteins whose three dimensional shape is key to their functions

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Correct option: D

All of these

Option D (All of these) is correct because all the statements about enzymes are accurate and fundamental to their function.

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