Henry 2.4 Biology Chemical Reactions and Enzymes

What are the biological catalysts that speed up chemical reactions

• turtles

• enzymes

• lipids

What is the function of an catalyst?

• To absorb protein

• To speed-up reactions

• To slow down reactions

• To destroy cells

What is a chemical reaction?

• A process that changes one set of chemicals into another set of chemicals

• A process of activation energy

• A biological catalyst

What do substrates do?

• Bind to a part of an enzyme called the active site and remain bound until the reaction is complete

• Lower the reaction's activation energy

• Affect activity of enzymes

• Release energy on their own

What is necessary for proper enzyme function?

• homeostasis

• temperature

• substrates

• concentration

Enzymes speed up chemical reactions that take place in cells.

• True

• False

Because matter and energy are conserved in chemical reactions, every organism must have a source of energy

• True

• False

Elements or compounds that enter into a reaction

• Reactants

• Products

Elements or compounds produced by the reaction

• Reactants

• Products

Chemical Reactions always involve changes in the chemical bonds that join _________ in compounds.

• atoms

• protons

• reactants

• ionic bonds