Question

A scientist observes a population of single-celled organisms at various temperatures. At extreme high temperatures and extreme low temperatures, the organisms’ population greatly decreased. The scientist hypothesized this was because the enzymes inside the single-celled organisms could not function. Which statement best describes how a change in temperature can affect an enzyme?
A. A temperature change can add new molecules to the structure of an enzyme.
B. A temperature change can remove energy necessary to activate the enzyme.
C. A temperature change can cause the enzyme to change its shape.
D. A temperature change can cause an enzyme to react with a different substrate.

Answer 1

A change in temperature affects an enzyme by causing the enzyme to change it's shape.

what is an enzyme?

An enzyme is a substance that catalyzes chemical reactions.

• Temperature is one of the major factors that aid enzymes action.

• Increase in temperature could increase the rate of enzyme.

• However, at a very high temperatures, the enzyme can be denatured thereby changing it shape or structure and the enzyme may no longer bind to the substrate or function effectively this will then reduce the rate of chemical reaction.

Therefore, a change in temperature i.e very high temperature can change the shape of an enzyme.

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