Question

Which statement about enzymes is true? A. They are large molecules that decrease the rate of reactions in the body. B. They are large molecules that increase the rate of biologicallyimportant reactions. C. They slow the rate of chemical reactions. D. They are permanently changed in the course of a reaction.

Answer 1

Answer;

B. They are large molecules that increase the rate of biologically important reactions.

Explanation;

-Enzymes are biological molecules, that are protein in nature, that significantly speed up the rate of virtually all of the chemical reactions that take place within cells.

-They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism. Some enzymes help break large molecules into smaller pieces that are more easily absorbed by the body. Other enzymes help bind two molecules together to produce a new molecule.

Answer 2

Answer:

The correct statement about enzyme is second (B) statement: They are large molecules that increase the rate of biologically important reactions.

Explanation:

• Enzymes are biological catalysts which are protein in nature.
• They lowers the activation energy of a reaction when catalyze a biological reaction.
• So in a reaction, when there is low energy need due to the presence of enzymes, the substrate will easily and quickly reacts to form the products.
• Hence increasing the rate of reaction which is the increase in products with respect to time.