Unit 2 Crossword Puzzle

9. The process by which plants use sunlight, water, and carbon dioxide to make oxygen and energy in the form of sugar.
10. The source of energy for use and storage at the cellular level.
12. Sphere of earth, all the water on earth.
15. Type of organism that is able to make its own food, base of the food chain.
16. Anything that has mass and it takes up space,makes up everything.
17. Electron Transport Chain, Third step of aerobic respiration, NADH and FADH from earlier reactions are used to make 32 units of ATP.
18. Type of organism that breaks down biotic compounds, recycles.
19. Organelle, site of photosynthesis.
20. Adenosine diphosphate, uncharged energy storage with two phosphates.
21. Nutrient, used in proteins and nucleic acids, must be fixed for living things to use, often limited

1. Pigment in chloroplasts, used to trap light energy during photosynthesis.
2. Nutrient, forms the backbone for all macromolecules in living things.
3. Sphere of earth, all living things on earth.
4. Describes a situation in which oxygen is present.
5. Describes a situation in which oxygen is not present.
6. Organelle, site of steps two and three aerobic cellular respiration.
7. Type of organism that must eat other organism to obtain energy.
8. Second step of anaerobic respiration,two types include alcoholic and lactic acid.
11. Nutrient, used in phosphates of nucleic acids and phospholipids of membranes, often limited.
13. Sphere of earth, all the rocks and soil on earth.
14. sphere of earth, all the gases surrounding earth.