Question

Nuclear Envelope is a derivative of?

• A. Microtubules
• B. Smooth endoplasmic reticulum
• C. Rough endoplasmic reticulum
• D. Membrane of Golgi complex

Answer 1

The correct option is C

Rough endoplasmic reticulum

The correct option is C:

Explanation for the correct option:

1. Nuclear envelope is the derivative of the rough endoplasmic reticulum (RER).
2. Two lipid bilayer membranes, an inner nuclear membrane, and an outer nuclear membrane, make up the nuclear envelope.
3. Nuclear holes connect these membranes to one another.
4. The nuclear envelope is supported by two sets of intermediate filaments.

Explanation for the incorrect options:

Option A:

1. The cytoskeleton is made up primarily of microtubules.
2. They are present in all eukaryotic cells and play a role in mitosis, and cell shape preservation.

Option B:

1. Smooth endoplasmic reticulum (SER) is a tubular form of the endoplasmic reticulum that lacks ribosomes.

Option D:

1. The Golgi apparatus, also known as the Golgi complex or Golgi body, is a membrane-bound organelle that consists of a series of flattened stacked pouches.
2. This organelle is responsible for the package and secretion of proteins.

Final answer:
Nuclear Envelope is a derivative of Rough endoplasmic reticulum.