If a small droplet of triacylglycerol molecules is suspended in water, the fat molecules form a "ball of spaghetti" with no particular orientation. But if a droplet of phospholipid molecules is put in water, all the molecules point outward, toward the water. Phospholipids are forced into this orientation because phospholipids have _____.

A. a charged end and a noncharged end
B. three fatty acid molecules, all pointing in different directions
C. two fatty acid molecules pointing in different directions
D. both a saturated fatty acid and an unsaturated fatty acid
E. two charged ends


Ans: A. a charged end and a noncharged end

Biology & Microbiology

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