What are the differnces between cell …

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What are the differnces between cell membrane and nuclear membrane??

Posted by Anshika Tyagi 5 years, 6 months ago

Yogita Ingle 5 years, 6 months ago

Cell Membrane vs Nuclear Membrane
Cell membrane is defined as the cytoplasmic lipid bilayer membrane that surrounds the protoplasm of the cell.	Nuclear membrane is defined as the two lipid bi layer membrane which surrounds the genetic material and nucleolus of the eukaryotic cell.
Nature of the Membrane and Pores
Cell membrane is a continuous membrane without any pores.	Nuclear membrane is a discontinuous membrane with complex pores.
Number of Units
Cell membrane is a single unit membrane (one lipid bilayer).	Nuclear membrane consists of two unit membranes (two lipid bilayers).
Persistence
Cell membrane persists during the lifetime of the cell.	Nuclear membrane disappears during the cell division in prometaphase and reforms again in telophase.
Permeability and Transportation
The cell membrane is semi-permeable membrane and regulates the flow of substances like ions, organic molecules between protoplasm and external environment.	The nuclear membrane is permeable only to small non-polar molecules (mRNA and proteins) and regulates the flow of these molecules between nucleoplasm and cytoplasm.
Endoplasmic Reticulum (ER)
The endoplasmic reticulum is not found attached to the cell membrane.	The endoplasmic reticulum is normally found attached to the nuclear membrane.