Chemical Reactions and Enzymes

Front

What are the elements and compounds that go into a reaction?

Back

Reactants

Front

What is a catalyst?

Back

A catalyst is an enzyme that speeds up the rate of a reaction and reduces the amount of energy needed for a reaction to start.

Front

What is a process that changes one set of chemicals into a new set of chemicals?

Back

Chemical reaction

Front

What factors can cause a protein's shape to change?

Back

pH and high temperatures can cause a protein's shape to change.

Front

What happens when an enzyme's shape has changed and it no longer works?

Back

The enzyme has been denatured.

Front

Define 'enzyme'.

Back

An enzyme is a biological catalyst that speeds up chemical reactions in living organisms.

Front

What is the role of temperature in enzyme activity?

Back

Temperature affects the rate of enzyme activity; higher temperatures can increase activity up to a point, but extreme heat can denature the enzyme.

Front

What is pH?

Back

pH is a measure of how acidic or basic a solution is, which can affect enzyme activity.

Front

What are products in a chemical reaction?

Back

Products are the substances that are formed as a result of a chemical reaction.

Front

What is the difference between reactants and products?

Back

Reactants are the starting materials in a chemical reaction, while products are the substances produced by the reaction.