Question

multiple choice question
how are enzymes in cells affected by changes in ph?

• even small changes in ph can alter the shape of enzymes and other proteins and affect their ability to function.
• the shape and function of enzymes and other proteins can be affected when large changes in ph (more than 1 unit) happen.
• typically, ph does not affect the shape and function of enzymes in cells.

Explanation:

Enzymes are proteins with specific 3D structures critical for their function. Even minor shifts in pH disrupt the weak bonds maintaining their shape, altering their active site and reducing or eliminating catalytic function. Larger pH changes are not required for this effect, and pH clearly impacts enzyme structure and function.

Answer:

Even small changes in pH can alter the shape of enzymes and other proteins and affect their ability to function.