Compared to an uncatalyzed reaction, an enzyme-catalyzed reaction A) uses less s

Question

Compared to an uncatalyzed reaction, an enzyme-catalyzed reaction A) uses less substrate. B) requires more energy. C) occurs at a faster rate. D) produces different products. E) requires a higher temperature. Which of the following is NOT a step in the enzyme-catalyzed conversion of a substrate to product? A) The substrate binds in the active site to form the E-S complex. B) A new substrate molecule binds to the enzyme for a new cycle C) The substrate changes its shape so it can bind at the active site. D) The enzyme assists in the conversion of the substrate to product. E) The product is released from the active site. The active site of an enzyme A) is remote from the site of substrate attachment. B) is converted to a product. C) catalyzes the reaction. D) includes the entire enzyme. E) increases the energy of reaction. The water-soluble B and C vitamins supply A) essential fatty acids. B) competitive inhibitors needed to regulate enzyme activity. C) coenzymes required by some enzymes. E) substrates necessary for most of the reaction, in the body.

Explanation / Answer

3.C occurs at faster rate

4. C) Substrate changes its shape

5.(C) catalyses the reaction

6. (D) coenzyme required by some enzyme

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