Explain the structure and function of endoplasmic reticulum
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Structurally, the endoplasmic reticulum is a
network of membranes found throughout the cell and connected to the
nucleus. There are two basic types of ER. Both rough ER and smooth ER
have the same types of membranes but they have different shapes. Rough
ER looks like sheets or disks of bumpy membranes while smooth ER looks
more like tubes. Rough ER is called rough because it has ribosomes
attached to its surface. Rough ER (RER) is very important in the
synthesis and packaging of proteins. Smooth ER (SER) acts as a storage
organelle. It is important in the creation and storage of lipids
and steroids.
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