reviewing for quiz

i was so busy this weekend, after going to two of my friends' birthday parties on friday and saturday, till now, i finally have time to study what i need. even though the lab report was due today's noon, i nearly failed to finished it, and eventually i handed it on 11.am. hope mrs.navabi could receive it and  i can spend the time effectively and not waste them. anyways, let me come back to the study, according to what mrs. navabi said, the quiz is going to be about the membran transport and structure, however, i have found so many packages to read, but so little time left for the day, hope i can get it down fast.

FATS

Basically, fats are composed of twp parts, glycerol and fatty acids, and three fatty acids are joined with one glycerol molecule by ester link, forming triacylglycerol. saturated and unsaturated fatty acid is also an important fact, one difference between them is that saturated fatty acid has no double bonds, while unsaturated  fatty acid has one or more double bonds. they also vary in shapes of molecules, unsaturated fat has a bend shape, while saturated fat is a straight shape. And we also talked about phospholipids, which two fatty acids and one phosphate are attached to one glycerol molecule, and it is the major component of the cell membranes.