Across
- 4. looked at a cork under the microscope and noticed little empty boxes that he called "cells"
- 7. making food by changing energy from the sun
- 8. respiration occurs when oxygen is present
- 10. gives the support and structure
- 12. all living things are made of cells
- 14. all plants are made of cells
- 16. pack up used proteins and move them out of the cell
- 17. the theory that living things come only from other living things
- 19. when nucleus divides to form 2 new cells
- 20. boiled broth in flasks
- 22. let's things in and out of the nucleus
- 23. controls what happens in the nucleus
- 24. the structure within the cytoplasm that carrys on specific jobs to make the cell function
- 25. the total of chemical activities of an organism that enable it to stay alive, grow, and reproduce
- 26. directs all activities that happen in the cell
- 28. moves out waste products
- 29. when the particle is too large to exit the cell so the material fuses with the cell membrane
- 30. water through the cell membrane
Down
- 1. uses no energy to move particles in and out of the cell
- 2. provide the cell with protein
- 3. all animals are made of cells
- 5. organisms that make their own food, like plants
- 6. chromosomes-holds the DNA tells the cell information
- 9. is when materials need energy to help them move through a cell membrane
- 11. when the particle is too large to enter through active or passive transport
- 13. supplies the cell with water
- 15. respiration occurs when oxygen levels are low
- 18. outside the layer of the cell lets things in and out
- 21. that cannot make their own food like humans
- 27. gel like substance that moves things through the cell