Microorganisms and Disease Which is not a major defense mechanism in the stomach? Proteolytic enzymes All of these Dense normal flora Low pH Proteolytic enzymes All of these Dense normal flora Low pH ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Prontosil is an effective antibacterial when used in in-vitro cultures an effective antibacterial when used in animals an effective antibacterial both in animals as well as in in-vitro cultures not used as an antibacterial agent an effective antibacterial when used in in-vitro cultures an effective antibacterial when used in animals an effective antibacterial both in animals as well as in in-vitro cultures not used as an antibacterial agent 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 the acid pH of the stomach secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine activate T cells to proliferate and secrete cytokines survive within macrophages survive the acid pH of the stomach secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine activate T cells to proliferate and secrete cytokines survive within macrophages ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease In the human disease cholera, what is it that actually ends up killing the victim? 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 Faulty carrier proteins the toxin produced by the bacterium Too little water in the food stream 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
Microorganisms and Disease Pseudomembraneous colitis is All of these precipitated by the use of certain antibiotics caused by a spore-forming bacterium caused by a gram-positive bacterium All of these precipitated by the use of certain antibiotics caused by a spore-forming bacterium caused by a gram-positive bacterium ANSWER DOWNLOAD EXAMIANS APP
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