Chromosomes carry genetic information in a molecule called DNA. A type of cell division called mitosis ensures process happens.
Learning topics, quizzes and worksheets recommended by the GCSE.CO.UK team.
The exchange surfaces are important because they allow oxygen to be exchanged for carbon dioxide. This process allows the body to get the oxygen that it needs.
Fractions are used commonly in everyday life, eg sale prices at 1/3 off, or recipes using 1/2 a tablespoon of an ingredient.
Cellular differentiation is the process of a cell changing from one cell type to another.
Area Quiz for GCSE Maths is a fun way to learn about the properties of rectangles, squares, triangles and circles. Learn how to calculate their areas and find out which shapes are more efficient.
Enzymes are proteins that catalyse biochemical reactions. This means that they increase the speed of these reactions without being consumed themselves.