Cells

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Across
  1. 2. a differentially permeable layer composed of protein and lipid around the outside of the cell. Controls what enters and leaves the cell
  2. 5. a food store
  3. 8. contains water. Collects
  4. 11. slimy outer covering found in some bacteria. Protects the cell
  5. 12. a rod-shaped organelle with a smooth outer membrane and folded inner membrane.Contains respiratory enzymes. Where respiration occurs.
  6. 14. (false foot) – an extension of membrane and cytoplasm (used to engulf food and for movement in amoeba)
  7. 17. a food store
Down
  1. 1. long, whip-like projection. Aids in movement
  2. 3. surrounded by a double membrane,Chromatin threads contain genetic information in the form of DNA. Essential for cell division.
  3. 4. a jelly-like substance composed of about 80% water and 20% dissolved substances, especially protein. Supports the organelles and is the site of many chemical reactions
  4. 6. a disc-shaped organelle surrounded by a double membrane which contains chlorophyll
  5. 7. DNA region in prokaryotes which lacks a nuclear membrane, and also in smaller regions called plasmids.
  6. 9. cytoplasm and nucleus together referred to as__________.
  7. 10. small or large membrane-bound compartments.
  8. 13. is the basic structural and functional unit of living organisms.
  9. 15. structures which are specialised to carry out one or more vital functions, e.g. the nucleus, mitochondria, chloroplasts and vacuoles.
  10. 16. lack a true nucleus and other membrane-bound organelles.
  11. 18. removes excess water from the cytoplasm in amoeba