Chromosomes carry genetic information in a molecule called DNA. A type of cell division called mitosis ensures process happens.
GCSE Biology (Science) learning topics and material for students in Year 7 to Year 11.
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.
Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration. Diffusion occurs in liquids and gases when their particles collide randomly and spread out.
Undifferentiated cells are cells that haven't yet changed to become specialised for a particular task. They are called stem cells.
Mitosis is the process of cell division that results in the formation of two genetically identical daughter cells. Meiosis is a special type of cell division and this quiz will help you revise and go through different aspects of mitosis.
Cell biology is the study of cells, their function, and how they work. Cells are the basic unit of life, and all organisms comprise cells. Please download the worksheets on this page to practice your knowledge of cells and cell biology.