Movement of materials to different parts of cytoplasm and nucleus is g

Movement of materials to different parts of cytoplasm and nucleus is generally carried out by

[amp_mcq option1=”Ribosomes.” option2=”Mitochondria.” option3=”Lysosomes.” option4=”Endoplasmic reticulum.” correct=”option4″]

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UPSC NDA-1 – 2021

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Movement of materials to different parts of cytoplasm and nucleus is generally carried out by the Endoplasmic reticulum.

The endoplasmic reticulum (ER) is a vast network of interconnected membranes extending throughout the cytoplasm of eukaryotic cells. It forms a continuous network with the outer membrane of the nuclear envelope, providing channels and pathways for the transport of molecules within the cell. Proteins synthesized on ribosomes attached to the rough ER are often transported within the ER lumen, and lipids synthesized in the smooth ER can also move through the ER network. The ER system is crucial for intracellular transport.

Ribosomes synthesize proteins but do not transport materials within the cell’s internal network. Mitochondria are involved in energy production. Lysosomes are involved in degradation and recycling. While vesicles budding from the ER and Golgi are involved in transport to other organelles or outside the cell, the basic network for internal movement of materials through the cytoplasm and towards the nucleus is largely provided by the ER.

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