Phospholipids Spontaneously Form a Bilayer in an Aqueous Solution

question 61

Multiple Choice

Phospholipids spontaneously form a bilayer in an aqueous solution. Why do the heads of the phospholipids point out and the tails point toward one another?

• A)The tails are nonpolar and form hydrogen bonds with one another.
• B)The tails are repelled by the aqueous environment.
• C)The heads are repelled by the water inside and outside the cell.

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Definitions:

Oxytocin

A hormone that stimulates labor contractions.

Childbirth

The process of giving birth to a baby, marking the end of pregnancy through labor and delivery.

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The first, usually painless, contractions of childbirth.

Uterine Contractions

Involuntary muscle contractions of the uterus, which can occur during menstruation or labor.