wat does the nuclear membrane do?

Question

i get all the other cell parts but not this one..

Answer 1

The nuclear membrane is the same thing as the nuclear envelope. It keeps the contents of the nucleus separate from the rest of the cell. The nuclear membrane does have pores that allow ribosomes and mRNA to leave the nucleus on their way to the cytoplasm.

It's also interesting that the nuclear membrane is double - two membranes together, actually.

Answer 2

The nuclear membrane insures that the interior of the nucleus is isolated from a cell's cytoplasm, allowing two different environments to be maintained. The membrane has two layers that enclose a distinct space in between, and although marked by large pores, the membrane is very selective, permitting only certain substances to enter or leave the nucleus. In addition, the space contained within the double-layered nuclear membrane is continuous at points with the endoplasmic reticulum, a membrane-enclosed structure that pervades the entire cytoplasm and provides a means for nuclear materials to reach all parts of the cell.
Contained within the nuclear membrane and surrounded by a granular-like nucleoplasm are two types of structures, the chromosomes and the nucleoli. The chromosomes consist of protein and the most basic units of heredity, the genes, which are composed of DNA. The nucleotide sequences of the genes' DNA contains the information that determines the nature of the cell during differentiation and that controls the metabolic activities of the cell. The genes exert such control by directing the synthesis of the enzymes that regulate all the cell's biochemical reactions. But since DNA never leaves the nucleus and since proteins (including enzymes) are synthesized in the cytoplasm, a messenger, called messenger RNA (mRNA), is needed to go from the nucleus to the ribosomes, the sites of protein synthesis in the cytoplasm.

The mRNA transcribes the DNA's nucleotide sequences, leaves the nucleus, travels to the ribosomes, and acts as the model for the ordering of amino acids during protein formation. The oval-shaped nucleoli are specialized parts of the chromosome where ribosomal RNA (rRNA) is transcribed. The rRNA moves from the nucleolus out of the nucleus to become part of the ribosomes.

Answer 3

It is made of a phospholipid bilayer and proteins embedded in the bilayer

In the phospholipid bilayer there is a spherical polar (hydrophilic) head region on the very outside and very inside of the double layered (bilayered) nuclear membrane, on the inside of the membrane is the nonpolar (hydrophobic) tail region, which is a threadlike.

*SUMMED UP*
Functions as the cell's boundary and controls the cell's interaction with its environment.

Answer 4

the nuclear membrane functions as the cells boundary and also at all times controls the cells conflict with its habitat/environment.

Answer 5

It keeps dirt from getting in the nuclears eyes