If You Could Add a Colored Label to One Phospholipid

question 55

Multiple Choice

If you could add a colored label to one phospholipid in the cell's plasma membrane to observe this molecule,what kind of movement of the molecule would you see?

• A)The molecule would move rapidly back and forth across the surface of the membrane.
• B)The molecule would be locked in place by its tightly packed neighbors in the plasma membrane.
• C)The molecule would be converted back and forth between a receptor protein and a phospholipid.
• D)The molecule would move back and forth between the membrane and the surrounding watery solution.
• E)The molecule would flip back and forth from one layer of the membrane to the other.

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