Enzymes

Front

What do enzymes speed up in chemical reactions?

Back

Enzymes speed up reaction rates by lowering the activation energy.

Front

What is the active site of an enzyme?

Back

The active site is the region on the enzyme where the substrate binds and the reaction occurs.

Front

What is a substance that speeds up a chemical reaction called?

Back

A substance that speeds up a chemical reaction is called a catalyst.

Front

How do enzymes affect activation energy?

Back

Enzymes decrease the activation energy required for a reaction to occur.

Front

What is the optimal temperature for enzyme activity?

Back

The optimal temperature is the temperature at which an enzyme functions best, often around 30°C for many enzymes.

Front

What happens to enzymes at high temperatures?

Back

At high temperatures, enzymes can denature, losing their shape and function.

Front

What is the role of substrates in enzyme reactions?

Back

Substrates are the reactants that enzymes act upon to form products.

Front

What is enzyme specificity?

Back

Enzyme specificity refers to the ability of an enzyme to choose exact substrates from a group of similar chemical molecules.

Front

What is the effect of pH on enzyme activity?

Back

Each enzyme has an optimal pH range; deviations can reduce activity or denature the enzyme.

Front

What are products in an enzyme-catalyzed reaction?

Back

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