Why Rer Membrane Is Rough In Nature- - BYJU-S

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Biology

Endoplasmic Reticulum

Why Rer Membr...

Question

Why RER membrane is rough in nature?

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Solution

RER:
RER also known as Rough endoplasmic reticulum is a cell organelle present in both animal and plant cells.
It helps in the synthesis of proteins due to the presence of ribosomes on its surface.
RER along with SER (smooth endoplasmic reticulum) forms the endoskeleton of the cell.
RER membrane is rough in nature because:
Rough endoplasmic reticulum appears rough, if viewed under a microscope.
It is so because of the presence of ribosomes on its surface.
Ribosomes are yet another cell organelle that help in the synthesis of proteins.

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Find out the correct sentence.

(a) Enzymes packed in the Lysosomes are synthesized by the RER (rough endoplasmic reticulum).
(b) Rough endoplasmic reticulum and smooth endoplasmic reticulum produce lipids and proteins respectively.
(c) The endoplasmic reticulum is related to the destruction of plasma membrane.
(d) Nucleoid is present inside the nucleoplasm of the eukaryotic nucleus.

Q. Difference between SER Vs RER SER - 1) No ribosomes present 2) Origin - From REB by giving of ribosomes 3) Location in cell - in the cytoplasm near the cell membrane 4) Production and storage - lipids and proteins 5) SER = Smooth Endoplasmic Reticulum RER - 1) Ribosomes are present 2) Origin - from the outer nuclear membrane 3) Location in cell - in cytoplasm near the nucleus 4) Production and storage - Proteins 5) RER = Rough Endoplasmic Reticulum

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