What surrounds the nucleus and contains pores?

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Multiple Choice

What surrounds the nucleus and contains pores?

The structure that surrounds the nucleus and contains pores is the nuclear envelope. This double membrane encloses the nucleus and keeps its genetic material separate from the rest of the cell. The nuclear pores are large protein complexes that regulate traffic between the nucleus and cytoplasm, letting RNA and ribosomal subunits exit while allowing certain proteins and other molecules to enter. The outer membrane is continuous with the endoplasmic reticulum, while the inner membrane is supported by the nuclear lamina for structural stability. In contrast, the plasma membrane surrounds the entire cell, the cytoplasm is the internal content of the cell excluding the nucleus, and the endoplasmic reticulum is a network of membranes involved in synthesis and transport, not the boundary around the nucleus.

The structure that surrounds the nucleus and contains pores is the nuclear envelope. This double membrane encloses the nucleus and keeps its genetic material separate from the rest of the cell. The nuclear pores are large protein complexes that regulate traffic between the nucleus and cytoplasm, letting RNA and ribosomal subunits exit while allowing certain proteins and other molecules to enter. The outer membrane is continuous with the endoplasmic reticulum, while the inner membrane is supported by the nuclear lamina for structural stability. In contrast, the plasma membrane surrounds the entire cell, the cytoplasm is the internal content of the cell excluding the nucleus, and the endoplasmic reticulum is a network of membranes involved in synthesis and transport, not the boundary around the nucleus.

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