Across
- 2. A source of nourishment, such as food, that can be metabolized by an organism to give energy and build tissue
- 4. When excess ATP and glucose are present, what molecule does the liver converts them into?
- 5. Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's ____
- 7. A plastid that contains chlorophyll and in which photosynthesis takes place
- 11. What is the first step in cellular respiration?
- 13. Two sources of energy-rich chemical bonds
- 14. Cell respiration is the controlled release of energy from __________ __________ in cells to form ATP
- 15. The primary source of energy for everybody to function
- 18. Powerhouses of the cells
- 19. ___________ _________ are those that cannot be created by an animal’s metabolism and need to be obtained from the diet
Down
- 1. What is the second step in cellular respiration?
- 3. Where energy is stored in a plant
- 5. Gives us the energy we need to get through the day, and so we are able to exert ourselves
- 6. All of the chemical reactions that take place in the human body
- 8. Catabolic reactions break down large molecules; ________ reactions build large molecules
- 9. Occurs only in plants, algae, and some bacteria
- 10. A source of energy for humans, taken through the mouth
- 12. When the stomach digests food, what in the food breaks down into glucose?
- 16. Destructive metabolism, usually including the release of energy and breakdown of materials
- 17. How many steps are in cellular respiration?