Question

What is endoplasmic reticulum? Write it's main functions.​

Answer 1

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$\huge\bold\purple{Answer:-}$

⏩ Endoplasmic reticulum:- It is a membranous network, enclosing a fluid-filled lumen.

⏩ It's main functions:-

→ Synthesis of proteins (Rough ER).

→Synthesis of lipids and other metabolic products and their secretion (SER).

→Helps in the formation of cell plate and nuclear membrane during cell division.

→ER also produces substance for new cellular parts (especially, cell membrane).

→ Some of the proteins and lipids produced by ER, helps in building the cell/plasma membrane and this very process is termed as membrane biogenesis.

→Endoplasmic reticulum helps to serve as channels for the transport of various materials (especially, proteins) between different regions of the cytoplasm or between the cytoplasm and the nucleus.

→ ER also provides internal support (mechanical support) to the colloidal cytoplasmic matrix of the cell.

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Answer 2

Answer:

Explanation:

The endoplasmic reticulum serves many general functions, including the folding of protein molecules in sacs called cisternae and the transport of synthesized proteins in vesicles to the Golgi apparatus.