Cellular Energy

1. An ATP molecule is composed of an adenine base, a ribose sugar, and ____ phosphate groups
5. Aerobic respiration occurs in ___ steps: glycolysis, krebs cycle, and the electron transport chain.
8. The light-dependent reaction requires ____ to work.
9. Photosynthesis takes place in this organelle
12. If oxygen is not present, organisms can undergo ______ to produce small amounts of ATP
15. The process of taking light energy and producing sugar
16. Photosynthesis produces sugars and _____, which we use to breath
17. When a phosphate is removed from ATP, it becomes _____
19. This process converts sugar into ATP
20. The sugar produced by photosynthesis using water, carbon dioxide, and light-energy

2. Organisms that obtain food by consuming other organisms
3. The ____cycle generates 2 ATP and happens before the ETC!
4. The light-independent reaction takes place in this part of the chloroplast.
5. Stacks of pancake-like structures that contain chlorophyll in the cloroplasts; this is where the light-depedent reaction takes place
6. The _____ transport chain is the main energy generator for cellular respiration, making almost 34 ATP for the body.
7. Light-absorbing molecules in chloroplasts
10. There are _____ total high energy bonds in ATP
11. To release energy from ATP, one _____ group is removed
13. Organisms that an make their own food
14. The energy currency of the cell used for energy release and storage
17. This type of reaction requires oxygen to work
18. This reaction takes place in the cytoplasm and breaks down glucose into two pyruvate molecules