Topic 1.2 Ultrastructure of Cells

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Across
  1. 2. Substance made of carbohydrate and peptides which makes up bacterial cell wall
  2. 5. Small circular piece of bacterial DNA, separate to main chromosome
  3. 7. System of membrane bound flattened sacs connected to nuclear and plasma membranes - cell communication network
  4. 8. ________ DNA that is not associated with histone proteins found in prokaryotic cells, mitochondria and chloroplasts
  5. 11. Double membrane bound organelle which is responsible for respiration
  6. 14. Organ of motility (movement) in cells -simple structure in prokaryotes, complex in eukaryotes
  7. 15. Organelle which processes molecules prior to transportation from cell
  8. 18. Organism which has cells that do not have a nucleus or other membrane bound organelles e.g. bacteria
  9. 19. Region in a prokaryote cell where the DNA is found
  10. 21. A structure in prokaryotic cells which allows the cell to attach to its substrate (biological or abiological)
  11. 22. Organism with cells which contain a nucleus and other membrane bound organelles
  12. 23. So called "coloured bodies" - consist of DNA molecule supported by histone proteins - only found in eukaryotes
Down
  1. 1. Aqueous material in which all cellular material is suspended - medium for biochemical reactions in the cell
  2. 3. Membrane separating the cytoplasm from the cell sap in plant cells.
  3. 4. Attribute of eukaryotic cells where different cell functions are separated from each other by a membrane barrier
  4. 6. Complex carbohydrate which is the main constituent of plant cell walls
  5. 9. Protein that organises chromosomes and around which DNA wraps
  6. 10. Large central section in plant cells which contains a watery solution called the cell sap
  7. 12. Largest cell organelle - contains all genetic material - only found in eukaryotes
  8. 13. A functionally and structurally distinct part of a cell
  9. 16. One of a type of organelle found only in plant cells e.g. chloroplast
  10. 17. Non-membrane bound organelle which is the site of protein synthesis in prokaryotes and eukaryotes
  11. 20. Organelle responsible for the breakdown of unwanted cellular structures