Bushings are one of those things that most people don't really think about until they find out they have a $600 mechanic's repair bill on their hands. Some even think the mechanic is trying to rip them off when they mention bushings needing replaced.
Lignin is a phenolic compound, chemically related to benzene. The cell walls of fungi are diverse among the taxonomic groups, but most contain chitin microfibrils embedded in a polysaccharide matrix and covered with a loose coating of additional molecules combining sugars and peptides (amino acid chains).
Chitin is a polysaccharide that makes up the cell walls of fungi  and the exoskeleton of insects. It creates a tough, protective  covering or a structural support. Edit. Share to: Answered.In Cell Biology (cytology).hat organisms have chitin in their cell walls? Chitin is found in the cell walls of fungi, the exoskeletons of arthropods such as crustaceans and insects, the radulae of molluscs, and the beaks and internal shells of cepha â¦ lopods, including squid and octopuses.