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.
2. Cell wall: In bacteria, the cell wall is usually made of peptidoglycan, a protein and sugar compound. This structure gives the cell some rigidity and protection. 3. Cell membrane: As in most cells, the bacterium's plasma membrane acts by coordinating the passage of molecules into and out of the cell.