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Rough endoplasmic reticulum

This electron micrograph shows a cell with extensive RER, indicating that it is actively synthesizing protein (translation) for secretion. At the light microscopic level, these regions of RER stain blue with hematoxylin. Also visible are mitochondria, lipid droplets, glycogen granules and a portion of the nucleus. Liver, 8000x

RER > <p>RER consists of a system of interconnected, flattened, membranous sacs or cisterns which have ribosomes on their outer (cytoplasmic) surfaces. In this image, RER fills most of the cytoplasm. Secretory proteins synthesized by ribosomes enter the lumen of the cistern and are transported to the Golgi. </p>

RER >

RER consists of a system of interconnected, flattened, membranous sacs or cisterns which have ribosomes on their outer (cytoplasmic) surfaces. In this image, RER fills most of the cytoplasm. Secretory proteins synthesized by ribosomes enter the lumen of the cistern and are transported to the Golgi.

Nucleus <p>This electron micrograph shows a cell with extensive RER, indicating that it is actively synthesizing protein (translation) for secretion. At the light microscopic level, these regions of RER stain blue with hematoxylin. Also visible are mitochondria, lipid droplets, glycogen granules and a portion of the nucleus. Liver, 8000x</p>

Nucleus

This electron micrograph shows a cell with extensive RER, indicating that it is actively synthesizing protein (translation) for secretion. At the light microscopic level, these regions of RER stain blue with hematoxylin. Also visible are mitochondria, lipid droplets, glycogen granules and a portion of the nucleus. Liver, 8000x

Mitochondria <p>This electron micrograph shows a cell with extensive RER, indicating that it is actively synthesizing protein (translation) for secretion. At the light microscopic level, these regions of RER stain blue with hematoxylin. Also visible are mitochondria, lipid droplets, glycogen granules and a portion of the nucleus. Liver, 8000x</p>

Mitochondria

This electron micrograph shows a cell with extensive RER, indicating that it is actively synthesizing protein (translation) for secretion. At the light microscopic level, these regions of RER stain blue with hematoxylin. Also visible are mitochondria, lipid droplets, glycogen granules and a portion of the nucleus. Liver, 8000x

Lipid droplets <p>This electron micrograph shows a cell with extensive RER, indicating that it is actively synthesizing protein (translation) for secretion. At the light microscopic level, these regions of RER stain blue with hematoxylin. Also visible are mitochondria, lipid droplets, glycogen granules and a portion of the nucleus. Liver, 8000x</p>

Lipid droplets

This electron micrograph shows a cell with extensive RER, indicating that it is actively synthesizing protein (translation) for secretion. At the light microscopic level, these regions of RER stain blue with hematoxylin. Also visible are mitochondria, lipid droplets, glycogen granules and a portion of the nucleus. Liver, 8000x

Glycogen granules <p>This electron micrograph shows a cell with extensive RER, indicating that it is actively synthesizing protein (translation) for secretion. At the light microscopic level, these regions of RER stain blue with hematoxylin. Also visible are mitochondria, lipid droplets, glycogen granules and a portion of the nucleus. Liver, 8000x</p>

Glycogen granules

This electron micrograph shows a cell with extensive RER, indicating that it is actively synthesizing protein (translation) for secretion. At the light microscopic level, these regions of RER stain blue with hematoxylin. Also visible are mitochondria, lipid droplets, glycogen granules and a portion of the nucleus. Liver, 8000x

Main Slide RER >Nucleus Mitochondria Lipid droplets Glycogen granules