CELL STRUCTURES AND FUNCTION
BIO MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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carbohydrates
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lipids
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proteins
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nucleic acids
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Detailed explanation-1: -The fundamental building blocks of all cell membranes are phospholipids, which are amphipathic molecules, consisting of two hydrophobic fatty acid chains linked to a phosphate-containing hydrophilic head group (see Figure 2.7).
Detailed explanation-2: -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.
Detailed explanation-3: -Lipids are the main component of cellular membranes. They are highly diverse in structure, and the distribution of different lipids and their species (membrane lipid composition) varies at the organism, cell type, organelle, membrane, bilayer-leaflet and membrane subdomain level.