• Created by: hermon
  • Created on: 14-12-12 20:57
  • All living things are made up of cells.

  • Know that the structures of different types of cells are related to their functions.

  • Know that to get into or out of cells, dissolved substances have to cross the cell membranes.

  • You need to be able to use your skills, knowledge and understanding to relate the structure of different types of cells to their function.

  Cells and cell structure

  • a) Know that most human and animal cells have the following parts:

    • a nucleus, which controls the activities of the cell

    • cytoplasm, in which most of the chemical reactions take place

    • a cell membrane, which controls the passage of substances into and out of the cell

    • mitochondria, which is where most energy is released in respiration

    • ribosomes, which is where protein synthesis occurs.

  •  b) Know that plant and algal cells also have a cell wall made of cellulose, which strengthens the cell.

    • Plant cells often have:

      • chloroplasts, which absorb light


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