What is the proper way to start a fire? Gather small twigs and light them. Then gather larger sticks.

Gather only kindling to start the fire. Then light your fire.

Gather more firewood than you think you will use. Then light your fire.

Gather only the firewood you think you will use. Then light your fire.

1. an enzyme is considered a(n) because it speeds up a chemical reaction without being used up.2. in a catalyzed reaction, a reactant is often called a(n) . an enzyme is specific because the shape of its matches only particular reactants.4. an enzyme speeds up reactions by lowering the . the between an active site and its substrate often strains bonds and the reaction proceed.6. a( , which is often a vitamin, binds to an enzyme and plays a role in catalysis.7. high temperatures or changes in ph can an enzyme, causing it to lose its shape and biological activity.