Microorganisms and Disease Which is not a major defense mechanism in the stomach? Proteolytic enzymes All of these Low pH Dense normal flora Proteolytic enzymes All of these Low pH Dense normal flora 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 ADP ribosylation of guanylate cyclase that stimulates production of cGMP cleavage of rRNA that results in disruption of ribosome function 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 ADP ribosylation of guanylate cyclase that stimulates production of cGMP cleavage of rRNA that results in disruption of ribosome function ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease What is common in catheters and ventilators? They predispose patients to viral rather than bacterial infections Bacteria responsible for associated infections are usually susceptible to antibiotics They are used primarily in neonatal intensive care units They bypass important defenses of the body They predispose patients to viral rather than bacterial infections Bacteria responsible for associated infections are usually susceptible to antibiotics They are used primarily in neonatal intensive care units They bypass important defenses of the body ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following is true regarding anthrax? Anthrax is caused by a virus Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Anthrax is highly contagious Inhalation Anthrax requires infection with a large number of spores Anthrax is caused by a virus Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Anthrax is highly contagious Inhalation Anthrax requires infection with a large number of spores ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease In the human disease cholera, what is it that actually ends up killing the victim? Faulty carrier proteins the toxin produced by the bacterium Too little water in the food stream Dehydration and loss of nutrients Faulty carrier proteins the toxin produced by the bacterium Too little water in the food stream Dehydration and loss of nutrients ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes? The pathogen contains mycolic acid in its cell wall The pathogen can live inside macrophages Antibodies to the pathogen are protective None of these The pathogen contains mycolic acid in its cell wall The pathogen can live inside macrophages Antibodies to the pathogen are protective None of these ANSWER DOWNLOAD EXAMIANS APP
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