Nuclear membrane

The nuclear envelope is a double-layered membrane that encloses the contents of the nucleus during most of the cell's lifecycle.

Plant Cell Nuclear Membrane

Understanding nuclear membrane function in a cell will help us to become more aware about the crucial role it plays in functioning of our bodies. This BiologyWise article tells you how the nuclear membrane functions in a cell.

An essential component of metazoan cells. Next to providing mechanical support to the Nucleus, its involved in most nuclear activities including: DNA replication, DNA repair, RNA transcription, chromatin organization, cell cycle regulation, cell development and differentiation, nuclear migration, and apoptosis. Its composed of intermediate filaments and membrane associated proteins.

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Telophase(mitosis): The fourth and last stage of mitosis. During this stage the chromosomes gather at opposite ends of the cell and lose their distinct rod-like shapes. Two new nuclear membranes then form around each of the two regions of DNA and the spindle fibers disappear.

Endoplasmic reticulum- a network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous within the nuclear membrane. It usually has ribosomes attached and is involved in protein and lipid synthesis. source- Oxford dictionary

The cell membrane is a double layer of lipids and proteins that surrounds a cell and separates its contents from the surrounding environment.

What is Endoplasmic Reticulum The endoplasmic reticulum (ER) is a network of membrane-bound organelle distributed throughout the cytoplasm of the eukaryotic cell. It is mainly concerned with membrane biogenesis, biosynthesis, processing, and transport of proteins and lipids. It is called ‘endoplasmic,’ as it is more concentrated in the inner side of the cytoplasm (endoplasm) than […]

Nucleus is the largest organelle in eukaryotic cells. It is surrounded by two membranes. Each one is a phospholipid bilayer containing many different types of proteins. The inner nuclear membrane defines the nucleus itself. In many cells the outer nuclear membrane is continuous with the rough ER and therefore the space between the inner and outer nuclear membrane is continuous with the lumen of the rough ER. The 2 nuclear membranes appear to fuse at the nuclear pores. These ring like pores…