Across
- 2. tiny particles inside the center of an atom
- 3. the "powerhouse" of a cell that converts nutrients into energy
- 5. C,H,O,N,P
- 7. an individual living thing.
- 13. organelle in the cells of a plant and algae
- 14. monosaccarides
- 15. energy molecule
- 17. are the cells that are on in the surface of different organs that control gas exchange
- 21. first stage in the photosynthesis
Down
- 1. the process when water and carbon dioxide combine to make sugars and release oxygen
- 4. simple sugars that all living things use to store and transport energy
- 6. make up the cell membrane and store energy
- 8. green pigment in a chloroplast that absorbs light energy
- 9. small pores in a plant leaf that can open and close to control transpiration and gas exchange with the air.
- 10. make up structures and control chemical reaction
- 11. the process of moving molecules across a cellular membrane through the use of cellular energy.
- 12. organic molecules such as glucose, that organisms use for chemical energy
- 16. nucleic acids monomers
- 18. basic unit of structure and function of living things
- 19. the ability to do work
- 20. the nonliving layer that surrounds and supports the cells of most plants and bacteria