AP Biology Unit 3 Enzymes

Front

What are vitamins and minerals?

Back

Activators that assist enzymes in catalyzing reactions.

Front

Can enzymes be used again and again?

Back

True, enzymes are not consumed in the reactions they catalyze.

Front

What is the term for the cellular process of breaking down large molecules into smaller ones?

Back

Catabolism.

Front

What does it mean if an enzyme can catalyze two different chemical reactions?

Back

It may have two distinct active sites or the reactants are very similar in size and shape.

Front

How does a decrease in temperature affect enzyme activity?

Back

It can decrease the rate of reaction by causing a change in the shape of the protein.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions without being consumed.

Front

What is competitive inhibition?

Back

A process where a molecule similar to the substrate competes for the active site of the enzyme.

Front

What is allosteric regulation?

Back

Regulation of an enzyme by binding an effector molecule at a site other than the active site.

Front

What is the optimum temperature for enzyme activity?

Back

The temperature at which an enzyme's activity is at its highest.

Front

What happens to enzymes at high temperatures?

Back

They can denature, losing their shape and functionality.