So it contains lipopolysaccharides protruding from the membrane, which can protect the bacteria from being killed off by different types of drugs as well as antibodies found within our body. So basically, these types of bacteria can resist the different drugs that we develop in the laboratory to kill off the different type of bacterial cells found in our body. So basically, one important part that our cell envelope contains is the Peptidoglycan. So basically, we can develop different types of drugs that actually break the cross links between our polysaccharide chains within the Peptidoglycan and that kills off our bacterial cell. Other different types of drugs that we can use can also break our bonds between the disaccharides, between this red and this blue. And that can also kill off our cell membrane, our cell, because once we break that cell wall, it can no longer resist that hydrostatic pressure that our internal environment of the cell actually contains.