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London, United Kingdom
Cell Nucleus, Sem
Dr David Furness, Keele University
Photograph - Photograph
Cell nucleus. Coloured scanning electron micrograph (SEM) of a section through a liver cell showing the nucleus (pink). The cell nucleus contains the cell's genetic information in the form of DNA (deoxyribonucleic acid). The nuclear pore complexes (tiny circles) in the nuclear envelope can be seen. All material moving between the nucleus and the cytoplasm passes through these channels. They allow passive transport (diffusion) of ions and small molecules and active transport (energy dependent) of proteins and RNAs (ribonucleic acids).
May 7th, 2013
Viewed 82 Times - Last Visitor from Richmond Hill, ON - Canada on 11/15/2015 at 11:34 AM