Nagging in this situation is shown as a way of exercising social control. Markus's mother had used nagging to enforce social control wherein she nags to make Markus does his homework instead of playing video games. Through, nagging his mother was able to make him comply and conform to what is expected of him to do, which is to do his homework before playing videogames
I think it is "The fatty acid tails are hydrophilic, and the negative charges on one set of tails ate attracted to the positive charges on the other set of tails
