Section 2.5

12345678
Across
  1. 2. It is a classification system that has been developed based on the type of reaction the enzyme catalyzes.
  2. 4. They are involved in electron transfer.
  3. 5. They are catalysts for chemical reactions in living things.
  4. 7. It is a substance that decreases the activation energy needed to start a chemical reaction and, as a result, also increases the rate of the chemical reaction.
  5. 8. It transfers a chemical group from one substance to another.
Down
  1. 1. It is a large protein enzyme molecule that is composed of one or more amino acid chains.
  2. 3. It is a specific reactant that an enzyme act on.
  3. 6. They form double bonds by adding or removing a chemical group.