The cell membrane review (article) | Khan Academy
https://www.khanacademy.org/science/ap-biology/cell-structure-and-function/plasma-membranes/a/hs-the-cell-membrane-review
WEBKey terms. Structure and function of the cell membrane. The cell membrane is semipermeable (or selectively permeable). It is made of a phospholipid bilayer, along with other various lipids, proteins, and carbohydrates. Image modified from OpenStax Biology. Each phospholipid is amphipathic, with two hydrophobic tails and a hydrophilic head.
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