Enzymes

Front

What are enzymes?

Back

Enzymes are biological catalysts that speed up chemical reactions in living organisms without being consumed in the process.

Front

Are enzymes changed or used up after a reaction?

Back

Enzymes are unchanged after a reaction and continue to work.

Front

What happens to enzymes when they are heated to a high temperature?

Back

The shape of the enzyme is changed and it denatures.

Front

What is the role of the active site in an enzyme?

Back

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

Front

What type of macromolecule are enzymes classified as?

Back

Enzymes are classified as proteins.

Front

What is meant by the term 'specificity' in relation to enzymes?

Back

Specificity refers to the fact that each enzyme only catalyzes one specific substrate.

Front

What is a substrate in the context of enzyme activity?

Back

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

Front

What is denaturation in relation to enzymes?

Back

Denaturation is the process where an enzyme loses its functional shape due to factors like heat or pH changes.

Front

What is the difference between a catalyst and an enzyme?

Back

All enzymes are catalysts, but not all catalysts are enzymes. Enzymes are biological catalysts.

Front

How do enzymes lower the activation energy of a reaction?

Back

Enzymes provide an alternative reaction pathway with a lower activation energy, making it easier for the reaction to occur.