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Rough endoplasmic reticulum

This high magnification electron micrograph shows ribosomes aligned along the cytoplasmic surface of the membranes of the endoplasmic reticulum.  Ribosomes, approximately 25 nanometers in diameter, synthesize proteins, which are either inserted into the RER membrane or are translocated into the lumen of the cistern.  65,000x

RER cistern <p>This high magnification electron micrograph shows ribosomes aligned along the cytoplasmic surface of the membranes of the endoplasmic reticulum.  Ribosomes, approximately 25 nanometers in diameter, synthesize proteins, which are either inserted into the RER membrane or are translocated into the lumen of the cistern.  65,000x</p>

RER cistern

This high magnification electron micrograph shows ribosomes aligned along the cytoplasmic surface of the membranes of the endoplasmic reticulum.  Ribosomes, approximately 25 nanometers in diameter, synthesize proteins, which are either inserted into the RER membrane or are translocated into the lumen of the cistern.  65,000x
- Cistern lumen <p>This high magnification electron micrograph shows ribosomes aligned along the cytoplasmic surface of the membranes of the endoplasmic reticulum.  Ribosomes, approximately 25 nanometers in diameter, synthesize proteins, which are either inserted into the RER membrane or are translocated into the lumen of the cistern.  65,000x</p>

- Cistern lumen

This high magnification electron micrograph shows ribosomes aligned along the cytoplasmic surface of the membranes of the endoplasmic reticulum.  Ribosomes, approximately 25 nanometers in diameter, synthesize proteins, which are either inserted into the RER membrane or are translocated into the lumen of the cistern.  65,000x
- Ribosomes <p>This high magnification electron micrograph shows ribosomes aligned along the cytoplasmic surface of the membranes of the endoplasmic reticulum.  Ribosomes, approximately 25 nanometers in diameter, synthesize proteins, which are either inserted into the RER membrane or are translocated into the lumen of the cistern.  65,000x</p>

- Ribosomes

This high magnification electron micrograph shows ribosomes aligned along the cytoplasmic surface of the membranes of the endoplasmic reticulum.  Ribosomes, approximately 25 nanometers in diameter, synthesize proteins, which are either inserted into the RER membrane or are translocated into the lumen of the cistern.  65,000x
Cytoplasm <p>This high magnification electron micrograph shows ribosomes aligned along the cytoplasmic surface of the membranes of the endoplasmic reticulum.  Ribosomes, approximately 25 nanometers in diameter, synthesize proteins, which are either inserted into the RER membrane or are translocated into the lumen of the cistern.  65,000x</p>

Cytoplasm

This high magnification electron micrograph shows ribosomes aligned along the cytoplasmic surface of the membranes of the endoplasmic reticulum.  Ribosomes, approximately 25 nanometers in diameter, synthesize proteins, which are either inserted into the RER membrane or are translocated into the lumen of the cistern.  65,000x
Main SlideRER cistern - Cistern lumen - RibosomesCytoplasm