Bio Unit 3 - Enzymes

Front

What are reactions that break down molecules called?

Back

Catabolic reactions.

Front

What is the difference between competitive and noncompetitive inhibitors?

Back

Competitive inhibitors bind to the active site of an enzyme, while noncompetitive inhibitors bind to a different site.

Front

What is true for all exergonic reactions?

Back

The reaction proceeds with a net release of free energy.

Front

Can enzymes be used again and again?

Back

True.

Front

Where does a substrate bind to an enzyme?

Back

Active site.

Front

What is an enzyme?

Back

A protein that acts as a catalyst to speed up chemical reactions.

Front

What is the role of the active site in an enzyme?

Back

It is the region where the substrate binds and the reaction occurs.

Front

What is a substrate?

Back

The reactant molecule that an enzyme acts upon.

Front

What is an allosteric site?

Back

A site on an enzyme where a molecule can bind, causing a change in the enzyme's activity.

Front

What is the effect of temperature on enzyme activity?

Back

Enzyme activity typically increases with temperature up to a certain point, after which it decreases due to denaturation.