Question

State the types and functions of endoplasmic reticulum

Answer 1

Answer:

there  are two types of er(endoplasmic reticulum)

• SER;  smooth endoplasmic reticulum- it does not contain ribosomes on its surface
• it helps in protein synthesis and thus help in membrane biogenesis i.e. the formation of cell membrane
• RER; Rough endoplasmic reticulum- It contains ribosomes on its surface
• it help in lipid synthesis

ER is a connecting tubule between nucleus and cytoplasm

Answer 2

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The functions of endoplasmic reticulum are :-

• Endoplasmic reticulum forms the supporting framework of the cell.

• Its large surface area inside the cell is the site for various metabolic activities.

• It helps to keep various cell organelles in position.

• It is associated with the synthesis, storage and transport of metabolic products such as protein and lipids.

• Some other synthesized proteins and lipids of endoplasmic reticulum functions as enzymes and harmones.

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