Asked • 05/23/19

Why don't phospholipid bilayers dissolve?

I just started learning about the structure and composition of cell's membrane and there is something that I fail to understand. The membrane is composed of a phospholipid bilayer. The phospholipid has a polar, hydrophilic head and a nonpolar, hydrophobic tail. My question: **Why doesn't the hydrophilic head dissolve in the extracellular fluid outside the cell?** I suppose that the extracellular fluid is watery, so how come that the water-loving head doesn't interact with the water from the extracellular fluid?

1 Expert Answer

By:

Anton I. answered • 05/24/19

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Biomedical Sciences Masters Candidate. 3+ Years Tutoring Experience

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