Unit 2

3. An organism that makes its own food; also called a producer
4. the breakdown of glucose by enzymes, releasing energy and pyruvic acid.
7. Plants use the sun's energy to convert water and carbon dioxide into sugar
9. compound made up of carbon, hydrogen, and oxygen atoms; major source of fast energy for the human body
12. (adenosine triphosphate) main energy source that cells use for most of their work
13. reactions of photosynthesis in which energy from ATP and NADPH is used to build high-energy compounds such as sugars

1. Cycle second stage of cellular respiration, in which pyruvic acid is broken down into carbon dioxide in a series of energy-extracting reactions
2. Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
5. reactions of photosynthesis that use energy from light to produce ATP and NADPH
6. A green pigment found in the chloroplasts of plants, algae, and some bacteria
8. The liquid reactant/input of photosynthesis, something all plants need
10. organism that obtains energy from the foods it consumes; also called a consumer
11. series of electron carrier proteins that shuttle high-energy electrons during ATP-generating reactions