Biology crossword

4. what we breate in
7. a colorless, odorless gas produced by burning carbon
10. When green plants and other organisms use sun to synthesize foods from carbon dioxide and water
13. series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, and couples this electron transfer with the transfer of protons across a membrane.
16. each of a number of flattened sacs inside a chloroplast, bounded by pigmented membranes
19. chemical breakdown of a substance by bacteria or yeast.
20. -a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
21. a series of enzyme-mediated reactions where the product of one reaction is used as the substrate in the next.
22. The breakdown of glucose by enzymes, releasing energy and pyruvic acid

1. organelle found in large numbers in most cells, in which the biochemical processes of respiration
2. flammable liquid that is produced by the natural fermentation of sugars
3. light-dependent reactions take place on the thylakoid membranes.
5. a simple sugar which is an important energy source in living organisms and is a component of many carbohydrates.
6. refers to the light-independent reactions in photosynthesis that take place in three key steps
8. Sequence of reaction from most living things generating energy during the aerobic respiration process
9. a plastid that contains chlorophyll and in which photosynthesis takes place
11. -relating, involving, or requiring oxygen
12. the supportive tissue of an epithelial organ,
14. organicac acid formed in sour milk and is produced in muscle tissue.
15. relating, involving, or requiring the absence of oxygen
17. the main constituent of Earth's hydrosphere, and the fluids of most living organisms
18. complex organic chemical that provides energy to drive many processes in living cells