Enzymes

Front

What is an enzyme?

Back

A biological catalyst that speeds up chemical reactions in living organisms without being consumed in the process.

Front

True or False: An enzyme can only be used once in a chemical reaction.

Back

False. Enzymes can be used repeatedly.

Front

What do enzymes reduce to increase the rate of a chemical reaction?

Back

Enzymes reduce the activation energy required for the reaction.

Front

What is a substrate?

Back

Any substance that is acted upon by an enzyme.

Front

What does a substrate become after an enzyme catalyzes a reaction?

Back

A product.

Front

What are the two main processes involved in chemical reactions?

Back

The breaking of bonds in reactants and the formation of new bonds in products.

Front

What is the active site of an enzyme?

Back

The specific region on the enzyme where the substrate binds.

Front

What is the role of coenzymes in enzymatic reactions?

Back

Coenzymes assist enzymes in catalyzing reactions, often by acting as carriers for chemical groups.

Front

How do temperature and pH affect enzyme activity?

Back

Enzymes have optimal temperature and pH ranges; deviations can reduce their activity or denature them.

Front

What is enzyme specificity?

Back

The concept that each enzyme only catalyzes a specific reaction or acts on a specific substrate.