Enzymes

Front

What is an enzyme?

Back

A biological catalyst that speeds up biochemical reactions without being consumed in the process.

Front

What is the active site of an enzyme?

Back

The specific region on an enzyme where the substrate binds.

Front

What does it mean for an enzyme to be specific?

Back

Each enzyme only catalyzes one specific reaction or acts on a specific substrate.

Front

What is the role of enzymes in biochemical reactions?

Back

To lower the activation energy required for the reaction to occur.

Front

What happens to an enzyme when it is denatured?

Back

It loses its three-dimensional structure and, consequently, its function.

Front

What factors can affect enzyme activity?

Back

Temperature, pH, substrate concentration, and the presence of inhibitors or activators.

Front

What is a substrate?

Back

The reactant molecule that an enzyme acts upon.

Front

What is an enzyme-substrate complex?

Back

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

Front

What is the effect of temperature on enzyme activity?

Back

Enzymes generally have an optimal temperature range; too high or too low can reduce activity.

Front

What is denaturation in the context of enzymes?

Back

The process by which an enzyme loses its shape and functionality due to extreme conditions.