Question

write in detail about endoplasmic reticulum

Answer 1

a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis.

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Answer 2

Answer :

Endoplasmic Reticulum :-

• Endoplasmic reticulum are tubular structures found scattered in the cytoplasm.
• They are only found in eukaryotic cells.
• They divide the intracellular space into two different compartments that is luminal and extraluminal compartments.
• The luminal compartment is inside the endoplasmic reticulum whereas the extraluminal compartment is is the cytoplasm.
• Some of the endoplasmic reticulum is attached with ribosomes.
• The endoplasmic reticulum which has ribosomes on their surface are called as rough endoplasmic reticulum.
• If the ribosomes are not present on the surface of endoplasmic reticulum, they are said to be smooth endoplasmic reticulum.
• The rough endoplasmic reticulum synthesizes proteins and secretes them.
• The smooth endoplasmic reticulum is involved in the synthesis of lipids.
• The lipid like steroidal hormones found in animal cells are synthesized by smooth endoplasmic reticulum.