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If you are comparing two phosphoglycerides (i.e., those that begin with the name

ID: 19072 • Letter: I

Question

If you are comparing two phosphoglycerides (i.e., those that begin with the name, "phosphatidyl" something) to determine which one will make the bilayer more fluid, you need to consider several characteristics. Which characteristic below is NOT IMPORTANT in determining fluidity effects?
A. Degree of saturation of the fatty acyl tails
B. Charge on the polar head group
C. Length of the fatty acyl tails
D. The speed of fluorescence recovery after you photobleach the phospholipids that have been labeled fluorescently with a tag of equal size.

Explanation / Answer

B. Charge on the polar head group

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