Enzymes

Front

What is an enzyme?

Back

An enzyme is a biological catalyst that speeds up chemical reactions in living organisms by lowering the activation energy required for the reaction.

Front

What is the active site of an enzyme?

Back

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

Front

What happens to enzymes at high temperatures?

Back

Enzymes can denature, meaning they lose their shape and functionality when exposed to high temperatures.

Front

What is denaturation in enzymes?

Back

Denaturation is the process where an enzyme loses its three-dimensional structure, rendering it inactive.

Front

How do enzymes affect activation energy?

Back

Enzymes lower the activation energy needed for a chemical reaction to occur, making the reaction proceed faster.

Front

What is a substrate?

Back

A substrate is the reactant molecule upon which an enzyme acts.

Front

Can enzymes be reused after a reaction?

Back

Yes, enzymes can be reused multiple times after a reaction, as they are not consumed in the process.

Front

What factors can affect enzyme activity?

Back

Factors such as temperature, pH, and substrate concentration can affect enzyme activity.

Front

What is the optimal temperature for enzyme activity?

Back

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

Front

What is the effect of extreme pH on enzymes?

Back

Extreme pH levels can denature enzymes, altering their shape and function.