Microorganisms and Disease What is common in catheters and ventilators? Bacteria responsible for associated infections are usually susceptible to antibiotics They bypass important defenses of the body They are used primarily in neonatal intensive care units They predispose patients to viral rather than bacterial infections Bacteria responsible for associated infections are usually susceptible to antibiotics They bypass important defenses of the body They are used primarily in neonatal intensive care units They predispose patients to viral rather than bacterial infections ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Both Mycobacterium tuberculosis and Streptococcus pneumoniae are acquired by inhalation have polysaccharide capsules have cell walls that contain a high content of mycolic acids stay in the lung and rarely, if ever, enter the bloodstream are acquired by inhalation have polysaccharide capsules have cell walls that contain a high content of mycolic acids stay in the lung and rarely, if ever, enter the bloodstream ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Immunization with which of the following toxoid induces high titer serum antibody, but does not protect from the corresponding disease? Botulism Diphtheria Shigellosis Tetanus Botulism Diphtheria Shigellosis Tetanus ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which is not a major defense mechanism in the stomach? Low pH Proteolytic enzymes All of these Dense normal flora Low pH Proteolytic enzymes All of these Dense normal flora ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Plastic implants can pose a serious nosocomial infection problem because infected implants usually have to be surgically removed phagocytes have trouble moving on the plastic surface phagocytes have trouble engulfing bacteria embedded in a biofilm All of these infected implants usually have to be surgically removed phagocytes have trouble moving on the plastic surface phagocytes have trouble engulfing bacteria embedded in a biofilm All of these ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Cholera toxin is an A-B type toxin in which the B portions bind to a receptor on a host cell and the A portion enters the cell to cause ADP ribosylation of adenylate cyclase that stops production of cAMP ADP ribosylation of a G protein that locks it into an active form that stimulates adenylate cyclase to make cAMP cleavage of rRNA that results in disruption of ribosome function ADP ribosylation of guanylate cyclase that stimulates production of cGMP ADP ribosylation of adenylate cyclase that stops production of cAMP ADP ribosylation of a G protein that locks it into an active form that stimulates adenylate cyclase to make cAMP cleavage of rRNA that results in disruption of ribosome function ADP ribosylation of guanylate cyclase that stimulates production of cGMP ANSWER DOWNLOAD EXAMIANS APP
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