Biology Crossword

4. green pigment in plants that absorbs light energy used to carry out photosynthesis
7. A process used by yeast cells and some bacteria to produce carbon dioxide and ethyl alcohol
8. process by which plants and some other organisms use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches steps include: capture light, light dependent reactions, calvin cycle
9. organelle that produces atp
10. electron carrier that provides high-energy electrons for photosynthesis
13. flattened membrane sac inside the chloroplast, used to convert light energy into chemical energy, site of the light reactions
14. The fluid of the chloroplast surrounding the thylakoid membrane
15. Respiration that requires oxygen
16. The conversion of pyruvate to lactate with no release of carbon dioxide
17. Produced by fermentation and oxidation of natural carbohydrates is called vinegar
19. organelle found only in plant and algae cells
21. lower energy molecule that can be converted to atp

1. the breakdown of glucose by enzymes, releasing energy and pyruvate
2. Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
3. Respiration that does not require oxygen
5. reactions of photosynthesis that use energy from light to produce ATP and NADPH
6. stacks of thlakoids
10. one of the carrier molecules that transfers high-energy electrons from chlorophyll to other molecules
11. Process by which cells release energy in the absence of oxygen two main types: alcoholic and lactic acid
12. reactions of photosynthesis in which energy from ATP and NADPH is used to build high-energy compounds such as sugars
18. the passage of energy through the components of the ecosystem
20. main energy source