Across
- 3. the process in which glucose is broken down to produce energy
- 5. the layers of gases surrounding a planet or other celestial body.
- 8. a pigment that gives plants their green color and absorbs sunlight for photosynthesis
- 10. any series of chemical reactions in photosynthesis not requiring the presence of light and involving the reduction of carbon dioxide to form carbohydrate
- 15. living, active, occurring, or existing in the absence of free oxygen
- 16. an organism that eats other plants or animals for energy and nutrients
- 17. the parts of earth where life exists
- 19. membrane-bound organelles that generate most of the chemical energy needed to power the cells biochemical reaction
Down
- 1. organism that breaks down dead organic material
- 2. chemical process by which molecules such as glucose are broken down anaerobically
- 4. an organelle within the cells of plants that is the site of photosynthesis
- 5. an organism that can produce its own food using light, water, and carbon dioxide.
- 6. anything that occupies space and has mass
- 7. the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar
- 9. the total amount of water on the planet
- 11. a substance that enters into and is altered in the course of a chemical reaction
- 12. related to, involving, or requiring free oxygen
- 13. all the rock, soil and sediments that make up earths land
- 14. the process of converting glucose into a form of energy (ATP) that is usable by cells
- 18. a substance that is present at the end of a chemical reaction