Which organelle is surrounded by a double phospholipid bilayer with many large pores?a)Nucleusb)Pysosonec)Golgi apparatusd)MitochondrionCorrect answer is option 'A'. Can you explain this answer?

Question

Answer

The nucleus is surrounded by a double membrane known as the nuclear envelope, with nuclear pores. The pores in the nuclear membrane permit large molecules such as protein and RNA to enter or exit this organelle. Therefore, option 'A' is the correct answer.

Answer

The nucleus, the largest organelle in eukaryotic cells, is surrounded by two membranes, each one a phospholipid bilayer containing many different types of proteins. The inner nuclear

membrane

defines the nucleus itself.

Answer

Nucleus is the organelle that is surrounded by a double phospholipid bilayer with many large pores. The nucleus is an essential organelle of a eukaryotic cell that contains the genetic material in the form of DNA. The following are the details about the nucleus and its membrane:

Structure of Nuclear Membrane:
- The nuclear membrane is a double-layered structure made of phospholipids that surrounds the nucleus.
- The two layers of the nuclear membrane are separated by a space called the perinuclear space.
- The inner layer of the nuclear membrane is lined with a mesh-like network called the nuclear lamina, which provides structural support.

Pores in Nuclear Membrane:
- The nuclear membrane contains many large pores that allow the movement of molecules such as RNA and proteins between the nucleus and the cytoplasm.
- These pores are formed by protein complexes called nuclear pore complexes (NPCs) that span the nuclear membrane.

Function of Nuclear Membrane:
- The nuclear membrane separates the genetic material from the rest of the cell and regulates the exchange of molecules between the nucleus and the cytoplasm.
- It also plays a role in maintaining the structure of the nucleus and protecting the DNA from damage.

In conclusion, the nucleus is the organelle that is surrounded by a double phospholipid bilayer with many large pores, which allow for the exchange of molecules between the nucleus and the cytoplasm. The nuclear membrane plays a crucial role in regulating gene expression and maintaining the integrity of the genetic material.

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