Chapter 3 Vocab

12345678910111213141516171819202122232425262728
Across
  1. 4. The diffusion of water through the membrane
  2. 5. The process by which cells release energy from food
  3. 6. breaks down molecules from food to release energy
  4. 8. holds the cell together, and protects it
  5. 11. The diffusion of certain molecules through the cell membrane without help, no cell energy
  6. 13. a form of chemical energy
  7. 14. the process of building up larger molecules from smaller ones, when water and oxygen is stored
  8. 16. the cell’s control center
  9. 18. Carries food, waste products and hormones
  10. 19. Supports, protects and holds the body together
  11. 20. These structures help plants make their food.
  12. 23. a clear, jelly-like substance within a cell
  13. 25. When a cell reproduces by dividing its nucleus and forming two new cells
  14. 26. a gel-like substance containing water, salt, and nutrients obtained from food
  15. 27. thick strands that contain DNA
  16. 28. groups of cells that work together to do a certain job
Down
  1. 1. Coordinates body functions in addition to carrying messages to and from the brain and spinal cord
  2. 2. tiny pores or holes in the cell membrane that allow some molecules to diffuse into the cell
  3. 3. when molecules of a substance move from an area that is crowded to an area that is less crowded
  4. 7. Groups of tissues that work together to do a certain job
  5. 9. The chemical process in which cells receive nutrients for growth and reproduction
  6. 10. Covers and protects body surfaces and internal organs
  7. 12. structures inside a cell that float in the cytoplasm
  8. 15. Contracts, when stimulated, to produce motion
  9. 17. materials move from areas of high concentrations to low requiring energy
  10. 21. where food, water, and waste material is stored within a cell
  11. 22. the process of breaking down larger molecules into smaller ones, energy is released
  12. 24. forms cells that are not identical to the parent cell