Microorganisms and Disease Pseudomembraneous colitis is precipitated by the use of certain antibiotics caused by a spore-forming bacterium All of these caused by a gram-positive bacterium precipitated by the use of certain antibiotics caused by a spore-forming bacterium All of these caused by a gram-positive bacterium ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Mucus helps in protecting against pathogens by lowering the pH sequestering Iron blocking access and attachment of pathogens to mucosal surfaces facilitating the growth of normal flora lowering the pH sequestering Iron blocking access and attachment of pathogens to mucosal surfaces facilitating the growth of normal flora ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following is common in the disease caused by Coryne-bacterium diphtheriae and Bacillus anthracis? Both organisms cause skin and respiratory tract infections The most serious disease symptoms are the direct result of toxin action Diphtheria toxin and edema toxin are ADP ribosylating toxins Both organisms are gram-positive spore formers Both organisms cause skin and respiratory tract infections The most serious disease symptoms are the direct result of toxin action Diphtheria toxin and edema toxin are ADP ribosylating toxins Both organisms are gram-positive spore formers ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease The "A" subunit of diphtheria toxin cause ADP ribosylation of a factor involved in protein synthesis binds host cell receptors found on heart cells lysis macrophages with the release of cytokines forms cAMP that leads to fluid accumulation cause ADP ribosylation of a factor involved in protein synthesis binds host cell receptors found on heart cells lysis macrophages with the release of cytokines forms cAMP that leads to fluid accumulation ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following is true regarding anthrax? Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Inhalation Anthrax requires infection with a large number of spores Anthrax is highly contagious Anthrax is caused by a virus Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Inhalation Anthrax requires infection with a large number of spores Anthrax is highly contagious Anthrax is caused by a virus ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of these cytokines is also known under the name cachectin? Interleukin 2 Tumor necrosis factor (TNF) Interferon gamma None of these Interleukin 2 Tumor necrosis factor (TNF) Interferon gamma None of these ANSWER DOWNLOAD EXAMIANS APP
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