Cells

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