Gr.9 chemical reactions

The energy required to start a reaction

• enzyme

• substrate

• activation energy

• product

A substance formed by a chemical reaction

• product

• enzyme

• substrate

• activation energy

A protein that speeds up a reaction

• enzyme

• substrate

• activation energy

• product

A substance that binds to an enzyme

• activation energy

• substrate

• enzyme

• product

Which of the following is a substance that lowers activation energy ?

• a substrate

• an ion

• a reactant

• a catalyst