NUTRITION
LIPIDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A lipid bilayer is formed when
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The hydrophilic heads in each layer face the surrouinding solution.
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The hydrophbic heads face the surrounding solution.
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -Being cylindrical, phospholipid molecules spontaneously form bilayers in aqueous environments. In this energetically most-favorable arrangement, the hydrophilic heads face the water at each surface of the bilayer, and the hydrophobic tails are shielded from the water in the interior.
Detailed explanation-2: -In water, these molecules spontaneously align-with their heads facing outward and their tails lining up in the bilayer’s interior. Thus, the hydrophilic heads of the glycerophospholipids in a cell’s plasma membrane face both the water-based cytoplasm and the exterior of the cell.
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