NUCLEAR ENVELOPE

Also known as the nuclear membrane, nucleolemma, or karyotheca.

is the double lipid bilayer membrane which surrounds the genetic material and nucleolus in eukaryotic cells.

Outer membrane

The outer nuclear membrane is also contiguous with the endoplasmic reticulum.

While it is physically linked, the

outer nuclear membrane contains various proteins found in far higher concentrations than the endoplasmic reticulum.

Inner Membrane

The inner nuclear membrane encloses the nucleoplasm, and is covered by the nuclear lamina,

It is connected to the outer membrane by nuclear pores which penetrate the membranes.

NUCLEAR PORES

The nuclear membrane is punctured by thousands of

nuclear pore complexes They link the inner and outer

nuclear membranes.

Taggart, R. B. Biology . 4TH edition. The unity and diversity of life. Wadsworth Publishing Company, Inc.

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