Microorganisms and Disease What is common in catheters and ventilators? They predispose patients to viral rather than bacterial infections They bypass important defenses of the body Bacteria responsible for associated infections are usually susceptible to antibiotics They are used primarily in neonatal intensive care units They predispose patients to viral rather than bacterial infections They bypass important defenses of the body Bacteria responsible for associated infections are usually susceptible to antibiotics They are used primarily in neonatal intensive care units ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Each of the 3 virulence factors of Bacillus anthracis i.e. the capsule, edema toxin and lethal toxin can affect the activity of M cells B cells ciliated epithelial cells macrophages M cells B cells ciliated epithelial cells macrophages ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease The "A" subunit of diphtheria toxin forms cAMP that leads to fluid accumulation cause ADP ribosylation of a factor involved in protein synthesis lysis macrophages with the release of cytokines binds host cell receptors found on heart cells forms cAMP that leads to fluid accumulation cause ADP ribosylation of a factor involved in protein synthesis lysis macrophages with the release of cytokines binds host cell receptors found on heart cells ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Both Mycobacterium tuberculosis and Streptococcus pneumoniae are acquired by inhalation have cell walls that contain a high content of mycolic acids stay in the lung and rarely, if ever, enter the bloodstream have polysaccharide capsules are acquired by inhalation have cell walls that contain a high content of mycolic acids stay in the lung and rarely, if ever, enter the bloodstream have polysaccharide capsules ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Type III secretion systems are used to inject "effector" proteins directly into a host cell. Salmonella uses a type III secretion system to help the pathogen to survive within macrophages secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine survive the acid pH of the stomach activate T cells to proliferate and secrete cytokines survive within macrophages secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine survive the acid pH of the stomach activate T cells to proliferate and secrete cytokines ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Pseudomembraneous colitis is caused by a gram-positive bacterium All of these caused by a spore-forming bacterium precipitated by the use of certain antibiotics caused by a gram-positive bacterium All of these caused by a spore-forming bacterium precipitated by the use of certain antibiotics ANSWER DOWNLOAD EXAMIANS APP
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