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Cell Structure and Compartments - Medical Science

Q1:

Which of the following organelles is directly connected to the outer membrane of the nucleus in a eukaryotic cell?

A Mitochondrion

B Lysosome

C Golgi apparatus

D Endoplasmic reticulum

ANS:D - Endoplasmic reticulum

Rough Endoplasmic Reticulum is always connected to the outer membrane of nucleus or we can also say that it's external membrane is an extension of the outer nuclear membrane. This kind of arrangement have significance in the translation of mRNA released from nucleus after transcription.