Across
- 3. dioxide a colorless, odorless gas produced by burning carbon and organic compounds and by respiration.
- 5. an organism that can not make their own food and depends on other animals or plants to eat.
- 7. a colorless, odorless reactive gas and life-supporting component of the air.
- 9. a green pigment, present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis.
- 11. respiration what cells do to break up sugars into a form that the cell can use as energy,this happens in all forms of life.
- 12. cycle the sequence of reactions by which most living cells generate energy during the process of aerobic respiration. It takes place in the mitochondria, consuming oxygen, producing carbon dioxide and water as waste products, and converting ADP to energy-rich ATP.
Down
- 1. a biochemical mechanism in plants by which chlorophyll absorbs light energy for photosynthesis.
- 2. an organism that is able to make its own food.
- 4. the process by which green plants and some other organisms use sunlight to make foods from carbon dioxide and water.
- 6. respiration a form of incomplete intracellular breakdown of sugar or other organic compounds in the absence of oxygen that releases energy.
- 8. the breakdown of glucose by enzymes, releasing energy and pyruvic acid.
- 10. respiration the process most living things undergo to use food energy.