cis-trans isomerism and real-life example

Well, in Biology, we learn that unsaturated lipids have a “kinked” structure. This disrupts the arrangement of lipids in the plasma membrane, and helps to regulate its fluidity.

But the reason why its structure is kinked got to do with the carbon-carbon double bond in unsaturated lipids.

the idea is that the double bond keeps the structure rigid because

You could not twist and turn those two carbon atoms without breaking the pi bond. The pi part of a double bond does not allow for rotation. (http://dl.clackamas.cc.or.us/ch106-02/pibonds.htm)

do refer to 

http://scifun.chem.wisc.edu/chemweek/PDF/Fats&Oils.pdf

to look at the picture and explanation 🙂

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