Unit 2 Biology

2. the sphere of water
5. the process in which glucose is broken down to produce energy
9. an organism that eats other plants or animals for energy and nutrients.
10. the process in which a substance breaks down into a simpler substance.
11. the source of energy for use and storage at the cellular level.
13. the sphere of life
15. the sphere of air
16. the main type of sugar in the blood and is the major source of energy for the body's cells
17. substances created during a chemical reaction, made from reactants
18. a series of four protein complexes, that leads to the creation of ATP in a complete system named oxidative phosphorylation

1. chemical compounds in food that are used by the body to function properly and maintain health.
3. an organism (as a bacterium or a fungus) that feeds on and breaks down dead plant or animal matter.
4. plant cell organelles that convert light energy into relatively stable chemical energy via the photosynthetic process.
6. uses sunlight to synthesize foods from carbon dioxide and water.
7. the sphere of hard solid earth rock
8. an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.
11. describes a situation in which oxygen is present
12. where the glycolysis process takes place
14. the conjugate base of pyruvic acid
19. another name for the krebs cycle