Enzymes and ATP

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) serves as the primary energy carrier in cells, providing energy for various cellular processes.

Front

What does a non-competitive inhibitor do?

Back

It binds to an enzyme at a site other than the active site, changing the enzyme's shape and reducing 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 an optimal point, after which it may decrease due to denaturation.

Front

What is the significance of the 'tri' in ATP?

Back

It indicates that ATP contains three phosphate groups.

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

How do competitive inhibitors affect enzyme activity?

Back

They compete with the substrate for binding to the active site, potentially decreasing the rate of reaction.

Front

What is denaturation in the context of enzymes?

Back

The process by which an enzyme loses its functional shape due to external factors like temperature or pH, rendering it inactive.

Front

What factors can affect enzyme activity?

Back

Temperature, pH, substrate concentration, and the presence of inhibitors or activators.