Across
- 4. H2O
- 5. vitamins, minerals, water- only need a little of these but you REALLY need them
- 8. (lipids) A class of nutrients that the body uses to store energy and cushion organs
- 9. main energy source that cells use for most of their work (adenosine triphosphate)
- 10. dioxide a gas that is expelled from the body by the respiratory system (CO2)
- 11. Plants use the sun's energy to convert water and carbon dioxide into sugars
- 12. gas inhaled and entering the bloodstream through the lungs
- 14. a lack or shortage
- 16. Broken down to glucose to provide energy.
- 18. cushioning that prevents the loss of heat
- 19. carbohydrates, proteins, and fats- you need a lot of these
Down
- 1. respiration makes ATP, which is the energy that keeps organisms alive
- 2. Elements found in food that are used by the body, made by the Earth
- 3. Substances in food that your body needs to grow, to repair itself, and to supply you with energy
- 6. cycle The transfer of nitrogen from the atmosphere to the soil, to living organisms, and back to the atmosphere
- 7. A simple sugar that is an important source of energy
- 11. Nutrients the body uses to build and maintain its cells and tissues, good for muscle development
- 13. Compounds found in food that help regulate many body processes
- 15. cycle The organic circulation of carbon from the atmosphere into organisms and back again
- 17. Plant cells that capture energy from sunlight and use it to produce food for the cell