Cholesterol has a tetracyclic ring structure & has the chemical formula C27H46O. Cholesterol contributes to cell membrane fluidity, permeability & stability, properties limited to relatively inflexible plant cell walls.
Cholesterol is an essential precursor or intermediate compound mammals use to produce steroid hormones, vitamin D and bile acids. The latter are produced in the liver and are important for the absorption of fat-soluble vitamins A, D, E and K in the small intestine.
Compare cholesterol's structure to estradiol, progesterone, testosterone & cortisone.
Indigo Instruments has maintained a substantial inventory of genuine Molymod atoms & bonds for over 30 years. These parts are compatible with every molecular model kit we have sold since day 1. This level of quality may appear expensive but no parts support from other vendors costs even more.