Match the key word to the correct definition.

column a column b

1. chemical reaction a. element or compound produced by a chemical reaction

2. endergonic reaction b. a chemical reaction that releases energy

3. exergonic reaction c. element or compound that enters into a chemical reaction

4. photosynthesis d. a process that transforms two different sets of chemicals into a new set of chemicals when they come in contact with one another

5. product e. a chemical reaction that requires an input of energy

6. reactant f. process used by organisms to break down high energy molecules to capture the energy in a form that can be used to power metabolic reactions

7. respiration g. process used by plants and other autotrophs to capture light energy and use it to power chemical reactions