what is the plasma membrane composed of? And who is responsible for transportation of materials in a cell?
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With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon molecule that functions as the backbone of these membrane lipids.
Endoplasmic reticulum is the cell organelle responsible for transport of substances inside the cell.
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the plasma membrane composed of lipids and proteins.Mitochondria is responsible for transportation of materials in a cell
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