Enzymes

Front

What are enzymes?

Back

Enzymes are proteins that act as catalysts to speed up chemical reactions in biological systems.

Front

What does a substrate become after an enzyme-catalyzed reaction?

Back

A substrate becomes a product after the reaction.

Front

What is the primary purpose of an enzyme?

Back

The primary purpose of an enzyme is to speed up chemical reactions.

Front

Do enzymes act on many different substrates?

Back

False, enzymes are specific to particular substrates.

Front

What is the site called where substrates bind to an enzyme?

Back

The site is called the active site.

Front

What is the lock and key model in relation to enzymes?

Back

The lock and key model describes how a specific substrate fits into the active site of an enzyme, like a key fits into a lock.

Front

What is activation energy?

Back

Activation energy is the minimum energy required for a chemical reaction to occur.

Front

How do enzymes affect activation energy?

Back

Enzymes lower the activation energy required for a reaction, making it easier for the reaction to occur.

Front

What is a substrate in the context of enzyme activity?

Back

A substrate is a reactant molecule that an enzyme acts upon.

Front

Can enzymes be reused after a reaction?

Back

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