Across
- 2. rigid outer layer found only in plant cells
- 4. digests or breaks down worn out cell parts
- 6. produced during photosynthesis; waste product
- 8. storage generally larger in plant cells
- 9. system that brings air into the body and removes carbon dioxide
- 11. powerhouse of the cell
- 13. the basic structure and function of living things
- 15. system that begins at the mouth
- 18. system that consists of nerves, brain, and spinal cord
- 19. permeable substances can pass through the cell membrane while others cannot
- 20. jelly like substance inside the cell holding the organelles
- 22. systems that includes skin, hair, regulates body temperature
Down
- 1. process by which cells convert glucose into energy
- 3. process by which plants make their own food
- 5. when cell membrane surrounds a vesicle to be removed from the cell
- 7. chlorophyll gives plants this color
- 10. system that includes heart and blood vessels
- 12. the control center of the cell
- 14. sugar
- 16. cells that have a nucleus
- 17. system that protects major organs and provides overall support
- 21. cells that do not have a nucleus