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Cell Nucleus, Sem
Photograph - Photograph
Cell nucleus, coloured scanning electron micrograph (SEM). Part of the nuclear wall (pink) has been removed to reveal the organelle's contents, which includes the cell's genetic information in the form of DNA (deoxyribonucleic acid), RNAs (ribonucleic acids) and nuclear proteins. The nuclear pore complexes (tiny circles) in the nuclear envelope can also 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 11th, 2013
Viewed 88 Times - Last Visitor from Hanoi, 44 - Vietnam on 10/15/2014 at 10:40 AM
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