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The cell membrane is composed of the lipid bilayer. In addition to lipids most membranes contain proteins and carbohydrates.

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YOUR finger nails and hair are made out of Keratin. its a protein (so is whale baleen and animal horns)

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13y ago

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A cell membrane is primarily composed of phospholipids, proteins, and cholesterol. Phospholipids form a bilayer that acts as a barrier, while proteins are embedded within the membrane and have various functions such as transport and signaling. Cholesterol helps maintain the fluidity and stability of the membrane.

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10mo ago
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Phospholipid bilayers. There are also proteins embedded on and through the membrane as well as steroids that helps to maintain the fluidity of the membrane. Structures like the glycocalyx may be attached to integral proteins for antigens.

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Wiki User

14y ago
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Q: A cell membrane is composed of what?
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