Enzymes & ATP Practice

Front

What is an enzyme?

Back

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

Front

What is the role of ATP in cells?

Back

ATP (adenosine triphosphate) is the primary energy carrier in cells, providing energy for various cellular processes.

Front

What is the optimal pH for enzyme activity?

Back

The pH at which an enzyme is most active; varies for different enzymes.

Front

What happens to enzymes at high temperatures?

Back

Enzymes can denature, losing their shape and functionality.

Front

What is a non-competitive inhibitor?

Back

A substance that reduces enzyme activity by binding to an enzyme at a site other than the active site, changing its shape.

Front

Where do enzymes primarily work in the digestive system?

Back

Enzymes primarily work in the small intestine.

Front

What is denaturation in enzymes?

Back

The process where an enzyme loses its three-dimensional structure due to external stress, affecting its activity.

Front

What is the active site of an enzyme?

Back

The specific region of an enzyme where substrate molecules bind and undergo a chemical reaction.

Front

How do temperature changes affect enzyme activity?

Back

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

Front

What is the difference between competitive and non-competitive inhibition?

Back

Competitive inhibitors bind to the active site, while non-competitive inhibitors bind elsewhere, altering enzyme shape.