Capitol Report: Iranâs Global Threat. This week, I voted to stop the dangerous deal the Obama Administration negotiated to lift sanctions on Iran. I voted to protect Americans from the global threat posed by a nuclear Iran, because this is not a Republican issue or Democrat issue; this is an American security issue.
Cell Membrane Structure. The cell membrane is primarily composed of a mix of proteins and lipids. Depending on the membraneâs location and role in the body, lipids can make up anywhere from 20 to 80 percent of the membrane, with the remainder being proteins.
structure of plasma membranes the plasma membrane also known as the cell membrane or cytoplasmic membrane is a biological membrane that separates the interior of a cell from its outside environment the primary function of the plasma membrane is to protect the cell from its surroundings