Across
- 2. Help control movement such as proteins in the muscles which help control contraction.
- 3. The minimum quantity of energy that the reacting species must possess in order to undergo a specific reaction.
- 4. Any of a large group of organic compounds occurring in foods and living tissues and including sugars, starch, and cellulose.
- 5. An attraction between atoms that allows the formation of chemical substances that contain two or more atoms.
Down
- 1. Transformation of one molecule to a different molecule inside a cell and mediated by enzymes.
- 6. A simple organic compound containing both a carboxyl (-COOH) and an amino (NH2) group.