Cells & control

• The cell cycle contains the interphase, where DNA is replicated, and mitosis, where prophase, metaphase, anaphase, telophase and cytokinesis occur.
• Mitosis creates two genetically identical daughter cells that are diploid and is an example of asexual reproduction.
• Groups of cells located at the end of plant roots are called meristems. These have zones of cell division, elongation and differentiation. Meristems contain stem cells, that produce specialised cells.
• The central nervous system is made up of the brain and the spinal cord with nerves that make up the rest of the nervous system. This allows parts of the body to communicate using impulses.
• Neurotransmissions are the chemicals that are released from one neurone to another. There are many types of neurone, all containing different neurotransmitters.