4 - Enzyme

Front

What are enzymes?

Back

Enzymes are biological catalysts that speed up chemical reactions in living organisms.

Front

Why are so many different enzymes needed in cells?

Back

Different enzymes are needed because the active site of an enzyme can only bind to a specific substrate.

Front

What is the active site of an enzyme?

Back

The active site is the region on the enzyme where the substrate binds.

Front

How do enzymes affect the speed of chemical reactions?

Back

Enzymes make reactions go faster and use less energy.

Front

What are enzymes composed of?

Back

Enzymes are composed of proteins.

Front

What happens to an enzyme when it is denatured?

Back

When an enzyme is denatured, it loses its shape and can no longer function.

Front

What is a substrate in relation to enzymes?

Back

A substrate is the reactant that binds to the enzyme's active site.

Front

What role do enzymes play in metabolism?

Back

Enzymes facilitate metabolic reactions, allowing cells to convert substrates into products efficiently.

Front

Can enzymes be reused after a reaction?

Back

Yes, enzymes can be reused multiple times after catalyzing a reaction.

Front

What factors can affect enzyme activity?

Back

Factors include temperature, pH, and substrate concentration.