1. Cell differentiation


  1. Students should be able to explain the importance of cell differentiation.
  2. As an organism develops, cells differentiate to form different types of cells.
    • Most types of animal cell differentiate at an early stage.
    • Many types of plant cells retain the ability to differentiate throughout life.
    • In mature animals, cell division is mainly restricted to repair and replacement. As a cell differentiates it acquires different sub-cellular structures to enable it to carry out a certain function. It has become a specialised cell.

Give examples to show how scientific methods and theories have changed over time. Explain, with an example, why new data from experiments or observations led to changes in models or theories. Decide whether or not given data supports a particular theory. ,

Use prefixes and powers of ten for orders of magnitude (eg tera, giga, mega, kilo, centi, milli, micro and nano).

Recognise and use expressions in decimal form,

Recognise and use expressions in standard form,

Make order of magnitude calculations,