Endoplasmic Reticulum

Paper Summary:

This paper looks at four organelles found inn all cells: mitochondria, endoplasmic reticulum, ribosomes, and the Golgi apparatus. It also looks at two components of photosynthetic cells - chlorophyll and chloroplasts. It explains the endosymbiont theory of eukaryote evolution, and explains what the limits are on cell size.

From the Paper:

"The endoplasmic reticulum is a network of membranes forming channels and tubes which are found throughout the cytoplasm of a cell. The endoplasmic reticulum helps move materials through the cytoplasm and to the cell membrane. Some endoplasmic reticulum tubules are studded with ribosomes on their cytoplasmic surfaces and this is known as rough endoplasmic reticulum in contrast to smooth endoplasmic reticulum, which has no ribosomes on its surface. The ribosomes synthesize proteins which are inserted into the lumen of the endoplasmic..."

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