write about endoplasmic reticulum
Answers
Explanation:
Endoplasmic reticulum
⭐ It makes and package proteins and lipids
⭐ It is found in eukaryotic organisms
⭐ it is the largest organelle in the eukaryotic cell
⭐ It is of two types ; Rough endoplasmic reticulum and smooth endoplasmic reticulum
Answer:
Endoplasmic reticulum (ER) :
Electron microscopic studies of eukaryotic cells reveal the presence of a network or reticulum of tiny tubular structures scattered in the cytoplasm that is called the endoplasmic reticulum. Hence, ER divides the intracellular
space into two distinct compartments,i.e.,luminal and extra luminal compartments.
The ER often shows ribosomes attached to their outer surface.The endoplasmic reticulum bearing ribosomes on their surface is called rough endoplasmic reticulum (RER). In the absence of ribosomes they appear smooth and are called smooth endoplasmic reticulum (SER).
RER is frequently observed in the cells actively involved in protection synthesis and secretion.They are extensive and continuous with the outer membrane of the nucleus.
The smooth endoplasmic reticulum is the major site for synthesis of lipid. In animal cells lipid like steroidal hormones are synthesised.