Respiration

4. converts ADP to ATP, also known as the citric acid cycle, and is part of cellular respiration.
5. a ribose sugar and three phosphate groups.
7. transparent fluid which forms the world's streams, lakes, oceans and rain.
8. naturally present in the air and is absorbed by plants in photosynthesis.
9. the breakdown of glucose by enzymes.
10. site of oxidation of organic molecules.
11. uses high energy electrons to convert ADP to ATP.
14. the infoldings or inward projections of the inner membrane of the mitochondria.
15. produced in the citric acid cycle.
16. high energy molecule used by cells to generate ATP.
17. to require oxygen
18. 2 carbons join a compound called Coenzyme A.

1. a simple sugar.
2. chemical breakdown of a substance by bacteria, yeasts, or other microorganisms.
3. needed to make citric acid.
6. the product of glycolysis.
8. made by the fermentation of sugar
10. organelle found in most cells, where respiration and energy production occur.
12. odorless reactive gas that forms 20 percent of the Earth's atmosphere.
13. important enzyme that provides energy for the cell to use through the synthesis of ATP.