The Cell in Action

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Across
  1. 2. the phase when chromosomes are copied
  2. 3. the process by which a cell membrane surrounds a particle and encloses the particle in a vesicle to bring the particle into the cell
  3. 5. the phase when a nuclear membrane forms and mitosis is complete
  4. 7. chromosomes that have the same sequence of genes and the same structure
  5. 9. the life cycle of a cell
  6. 10. the movement of particles from regions of higher density to regions of lower density
  7. 12. the movement of substances across the cell membrane that requires the cell to use energy
  8. 14. the breakdown of food without the use of oxygen
  9. 15. the movement of substances across a cell membrane without the use of energy by the cell
  10. 19. the diffusion of water through a semipermeable membrane
  11. 20. in eukaryotic cells, a process of cell division that forms two nuclei, each of which has the same number of chromosomes
Down
  1. 1. the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to make food
  2. 4. in a eukaryotic cell, one of the structures in the nucleus that are made up of DNA and protein; in a prokaryotic cell, the main ring of DNA
  3. 6. molecules that absorb light energy
  4. 8. the process by which cells use oxygen to produce energy from food
  5. 11. the phase when chromosomes line up along the equator of the cell
  6. 13. the division of the cytoplasm of a cell
  7. 16. the process in which a cell releases a particle by enclosing the particle in a vesicle that then moves to the cell surface and fuses with the cell membrane
  8. 17. the phase when chromatids separate and move to the opposite sides of the cell
  9. 18. the phase when chromosomes condense into rodlike structures