Scopolamine is a first-line medication for prevention of motion sickness and should be administered transdermally several hours before the anticipated motion exposure. First-generation antihistamines, although sedating, are also effective.
Mycolic acid. Mycolic acids are long fatty acids found in the cell walls of the mycolata taxon, a group of bacteria that includes Mycobacterium tuberculosis, the causative agent of the disease tuberculosis. They form the major component of the cell wall of mycolata species.
chitin, individual strands are held together by hydrogen bonds as in cellulose. Accordingly, chitin has a structural function. It is also found in the cell walls of yeasts, fungi and algae.-Glycosidic linkages also connect the two amine-group-containing monomers in bacterial cell walls: N-acetyl- -D-glucosamine and N-acetylmuramic acid.