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Question

Each phospholipid in the plasma membrane bilayer has

A
Hydrophobic heads and Hydrophilic tails
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B
Hydrophilic heads and Hydrophobic tails
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C
Both the head and the tail are hydrophilic
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D
Both the head and the tail are hydrophobic
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Solution

The correct option is B Hydrophilic heads and Hydrophobic tails
The phospholipid bilayer consists of two layers of phospholipids, with a hydrophobic, or water-hating interior, and a hydrophilic, or water-loving exterior. The hydrophilic (polar) head group and hydrophobic tails (fatty acid chains) are depicted in the single phospholipid molecule.

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