Nuclear envelope is a derivative of : [2015 RS]a)Membrane of Golgi complexb)Microtubulesc)Rough endoplasmic reticulumd)Smooth endoplasmic reticulumCorrect answer is option 'C'. Can you explain this answer?

Question

Nuclear envelope is a derivative of :        [2015 RS]a)Membrane of Golgi complexb)Microtubulesc)Rough endoplasmic reticulumd)Smooth endoplasmic reticulumCorrect answer is option 'C'. Can you explain this answer?

Answer

Nuclear envelope is a derivative of rough endoplasmic reticulum. It is formed during telophase by fusion of vesicles into which the nuclear envelope develops, during prophase

Answer

Rough endoplasmic reticulum which contains ribosomes
refer ncert bio class 11

Answer

Nuclear membrane is derived from RER

Answer

The nuclear envelope is a double membrane structure that surrounds the nucleus of eukaryotic cells. It separates the contents of the nucleus from the cytoplasm and plays a crucial role in regulating the transport of molecules in and out of the nucleus. The nuclear envelope is derived from the rough endoplasmic reticulum (ER), making option C the correct answer.

Explanation:
The rough endoplasmic reticulum (ER) is a network of membrane-bound tubules and sacs that are studded with ribosomes. It is involved in protein synthesis and the modification of newly synthesized proteins. The nuclear envelope is continuous with the rough ER, and it is derived from the same membrane system.

During the formation of the nuclear envelope, the rough ER membrane undergoes a series of structural modifications. These modifications include the invagination and fusion of the rough ER membrane to form the double membrane structure of the nuclear envelope. This process is facilitated by the interaction of specific proteins and lipid components of the ER membrane.

The rough ER membrane is rich in proteins and lipids that are involved in protein synthesis and secretion. These proteins and lipids are also present in the nuclear envelope, indicating their common origin. Additionally, the nuclear envelope contains nuclear pore complexes, which are responsible for regulating the transport of molecules in and out of the nucleus. These pore complexes are also derived from the rough ER membrane.

In contrast, the Golgi complex is responsible for modifying, sorting, and packaging proteins for transport to their final destinations. While it is involved in membrane trafficking, it is not directly involved in the formation of the nuclear envelope.

Microtubules, on the other hand, are cytoskeletal structures involved in various cellular processes, including cell division and intracellular transport. They provide structural support and help in the movement of organelles. However, they are not involved in the formation of the nuclear envelope.

The smooth endoplasmic reticulum (ER) is a distinct compartment of the ER that lacks ribosomes. It is involved in lipid synthesis, detoxification, and calcium storage. It does not contribute to the formation of the nuclear envelope.

Therefore, the correct answer is option C: Rough endoplasmic reticulum.

Answer

Nuclear envelope is a derivation of rough endoplasmic reticulum

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