Bio Test Unit 4 Part 2 Review

Front

What is an exothermic reaction?

Back

A reaction that releases energy in the form of heat.

Front

What is an endothermic reaction?

Back

A reaction that absorbs energy from its surroundings.

Front

What is the optimal temperature for enzyme activity?

Back

The temperature at which an enzyme functions most efficiently.

Front

What is the active site of an enzyme?

Back

The region on the enzyme where substrates bind and reactions occur.

Front

What is an enzyme?

Back

A biological catalyst that speeds up chemical reactions in living organisms.

Front

Can enzymes be reused after a reaction?

Back

Yes, enzymes can be reused multiple times.

Front

What is a substrate in enzymatic reactions?

Back

The reactant molecule that an enzyme acts upon.

Front

What does the term 'enzyme-substrate complex' refer to?

Back

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

Front

What is the lock and key model of enzyme action?

Back

A model that explains how enzymes and substrates fit together perfectly.

Front

What factors can affect enzyme activity?

Back

Temperature, pH, and substrate concentration.