Enzymes

Front

What is the active site of an enzyme?

Back

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

Front

What are products in the context of enzyme reactions?

Back

Products are the substances that are formed as a result of the enzyme-catalyzed reaction.

Front

What is the enzyme-substrate complex?

Back

The enzyme-substrate complex is the temporary complex formed when an enzyme binds to its substrate.

Front

What does specificity mean in relation to enzymes?

Back

Specificity refers to the ability of an enzyme to choose exact substrates from a group of similar chemical molecules, often described by the lock and key model.

Front

Can an enzyme be used more than once in a chemical reaction?

Back

Yes, enzymes can be used multiple times as they are not consumed in the reaction.

Front

What is the role of enzymes in biological reactions?

Back

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

Front

What factors can affect enzyme activity?

Back

Factors that can affect enzyme activity include temperature, pH, substrate concentration, and the presence of inhibitors or activators.

Front

What is an enzyme inhibitor?

Back

An enzyme inhibitor is a substance that decreases the activity of an enzyme by binding to it and preventing substrate binding.

Front

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

Back

Competitive inhibition occurs when an inhibitor competes with the substrate for the active site, while non-competitive inhibition occurs when an inhibitor binds to a different part of the enzyme, altering its function.

Front

How does temperature affect enzyme activity?

Back

Enzyme activity typically increases with temperature up to an optimal point, after which high temperatures can denature the enzyme, reducing its activity.