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 is the active site of an enzyme?

Back

The specific region on the enzyme where the substrate binds and the reaction occurs.

Front

What do enzymes typically end with?

Back

-ase.

Front

Which of the following is an enzyme: Sucrose, Saccharide, Fructose, Amylase?

Back

Amylase.

Front

What is the role of a substrate in an enzymatic reaction?

Back

The substrate is the molecule upon which an enzyme acts.

Front

What is the optimal pH for enzyme A if it functions best at pH 2?

Back

Enzyme A has an optimal pH of 2.

Front

What happens to an enzyme when it is denatured?

Back

It loses its functional shape and can no longer catalyze reactions.

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.

Front

What is the effect of temperature on enzyme activity?

Back

Enzyme activity typically increases with temperature up to a certain point, after which it decreases due to denaturation.