Question

How are endoplasmic reticulam classified on the basis of presence or absence of ribosomes on their surface ​

Answer 1

Answer:

Endoplasmic reticulum is characterized on the basis of two types:

→ Smooth Endoplasmic Reticulum: It's a membrane with smoothness because ribosomes are not attached to them. ⏩ →Rough Endoplasmic Reticulum: It's surface us rough because of presence of ribosomes.

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Answer 2

Answer:

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The RER membrane is continuous with the nuclear envelope, which surrounds the cell nucleus. The RER is also located near the Golgi apparatus, which transports, modifies, and packages proteins for delivery to targeted destinations. Many proteins that are synthesized in the RER are packaged into vesicles and transported to the Golgi apparatus.