Coloured Sem Of Rough Endoplasmic Reticulum
by Professors P. Motta & T. Naguro/science Photo Library
Title
Coloured Sem Of Rough Endoplasmic Reticulum
Artist
Professors P. Motta & T. Naguro/science Photo Library
Medium
Photograph - Photograph
Description
Rough endoplasmic reticulum. Coloured high resolution scanning electron micrograph of rough endoplasmic reticulum (ER) in a pancreatic acinar cell. ER is a network of folded membranes forming sheets, tubes or flattened sacs in the cell cytoplasm. It is the site of specific enzymically controlled biochemical reactions. On the surface of the ER membrane are numerous ribosomes (tiny spheres). Ribosomes are involved in protein synthesis. They give the ER its granular appearance and give rise to the name rough" ER. "Smooth" ER (not seen) has no ribosomes and is concerned with fat metabolism."
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October 3rd, 2018
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