2006-10-17 10:39:31 · 6 answers · asked by oxshortiexo6 1 in Science & Mathematics ➔ Biology
a nuclear envelope is what surrounds the nucleus in eukaryotic cells. It keeps the contents of the necleus contained while keeping the cytoplasams of the cell out.
2006-10-17 10:42:58 · answer #1 · answered by Boom!!! Shock A Locka 5 · 0⤊ 0⤋
The nuclear envelope (synonyms: karyotheca, nuclear membrane, nucleolemma, perinuclear envelope) refers to the double membrane of the nucleus that encloses genetic material in eukaryotic cells. It separates the contents of the nucleus (DNA in particular) from the cytosol. The space between the two membranes that make up the nuclear envelope is called the perinuclear space, and is usually about 20 - 100 nm wide. The outer membrane is continuous with the rough endoplasmic reticulum.
Numerous nuclear pores are present on the nuclear envelope to facilitate and regulate the exchange of materials (for example, proteins and RNA) between the nucleus and the cytoplasm, .
The inner membrane is erected upon the nuclear lamina, a network of intermediate filaments made of lamin, that plays a role in mitosis and meiosis. The type of Lamins present are A, B1, B2, and C.
The nuclear envelope may also play a role in the disposition of chromatin inside the nucleus. The lamina acts as a site of attachment for chromosomes.
2006-10-17 23:33:15 · answer #2 · answered by SP!DEY ! 2 · 0⤊ 1⤋
I think it has to do with biology. Go use the Google search engine and type in "what is a nuclear envelope?" Good luck finding answers!
2006-10-17 10:41:14 · answer #3 · answered by leazngurl 5 · 0⤊ 0⤋
Just an old name for the nuclear membrane.
2006-10-17 11:33:48 · answer #4 · answered by Anonymous · 0⤊ 0⤋
an envelope u send bombs in silly
2006-10-17 10:41:53 · answer #5 · answered by Anonymous · 0⤊ 1⤋
try
2006-10-17 11:39:51 · answer #6 · answered by dianed33 5 · 0⤊ 0⤋