Cells and Metabolism

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Across
  1. 3. a difference in concentration of a solution
  2. 6. all chemical reactions occurring in a living organism
  3. 9. the site of cellular respiration
  4. 12. a group of cells that are similar in structure and function
  5. 13. a small membrane-bound cavity in the cytoplasm of a cell
  6. 14. tissue that forms the outer part of the skin and lines hollow organs
  7. 15. the process by which a cell surrounds and takes in solid particles
  8. 16. the diffusion of water molecules through a semi-permeable membrane
  9. 17. a molecule that stores energy in cells
  10. 18. a membrane that forms the external boundary of a celll
Down
  1. 1. a nerve cell
  2. 2. the series of reactions that occur in the mitochondria during aerobic respiration; another name for the krebs cycle
  3. 4. the ions or inorganic molecules required by enzymes to catalyse a reaction
  4. 5. muscle that is not under our conscious control
  5. 7. an enzyme that breaks down fats
  6. 8. a protein that allows ions, water and small molecules to pass through the cell membrane
  7. 10. a lipid molecule that contains a phosphate group
  8. 11. chemical reactions that break down large organic molecules into smaller ones, with the release of energy
  9. 19. a protein that increases the speed of chemical reactions