Non self components often protein or polysaccharide

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non-self components, often protein or polysaccharide in nature, are referred to as antigens. The host responds to these antigens by making antibodies that will react with invading bacteria and mark them or tag them for destruction by phagocytes. Indicate the bacterial structures that are likely to be antigens, to which host antibodies bind, marking the invader for phagocytosis View Available Hint(s) Previous Answers Correct Surface components (capsule, cell wall, fimbriae, flagella) are more likely to be “visible” to the host as antigens. Components in the cell’s interior (ribosomes, nucleoid, plasmid), are not as likely to serve as useful antigens for the host since they are sequestered within the bacterial cell. Even though they may be antigenic, antibodies against them will not be able to tag the SURFACE of a bacterial cell. Part F - Bacterial cell components as targets for antibacterial drugs An important characteristic of antibacterial drugs is their selective toxicity. If antibacterial drugs were not selectively toxic, then they would kill or interfere with the hosts’ cells as well as bacterial cells. Examining cellular differences between bacterial (prokaryotic) cells and host (eukaryotic) cells suggests strategies to achieve selective toxicity. We can capitalize on these differences and take advantage of them in the design of antibacterial drugs Identify antibacterial strategies that would likely be selectively toxic for bacteria. View Available Hint(s) capsule pilus (pili) plasma membrane ribosomes flagella cytoplasm nucleoid cell wall fimbriae Submit cell wall capsule flagella nucleoid ribosomes plasmids fimbriae Submit
8/22/2018 MasteringMicrobiology: Ch 04 HW 4/5 Previous Answers Correct Those structures of processes that are unique to bacterial (prokaryotic) cells make excellent targets for antibacterial drugs. These include the peptidoglycan of the bacterial cell wall, the 70s bacterial ribosome, and potentially the bacterial fimbriae. Lysosomes and microtubules are found in eukaryotic cells and would not be appropriate targets for antibacterial drugs. Part G - Structure and Function of Bacterial Cell Components A key objective of this chapter is to identify the function of each of the structures associated with bacterial cells. This activity requires you to match the function with its appropriate cellular location. Drag the function to the appropriate cell structure. View Available Hint(s) Previous Answers Correct Many medically important bacteria have cellular features that enable them to enter and attach to host tissue and avoid host defense mechanisms. Additionally, some microbes produce

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