Microorganisms and Disease Mucus helps in protecting against pathogens by blocking access and attachment of pathogens to mucosal surfaces facilitating the growth of normal flora sequestering Iron lowering the pH blocking access and attachment of pathogens to mucosal surfaces facilitating the growth of normal flora sequestering Iron lowering the pH ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of these cytokines is also known under the name cachectin? Tumor necrosis factor (TNF) Interferon gamma None of these Interleukin 2 Tumor necrosis factor (TNF) Interferon gamma None of these Interleukin 2 ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease The toxins produced by bacteria All of these encourage bacterial reproduction interfere with physiological processes in the body kill viruses All of these encourage bacterial reproduction interfere with physiological processes in the body kill viruses 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 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 The pathogen contains mycolic acid in its cell wall 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 activate T cells to proliferate and secrete cytokines secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine survive within macrophages survive the acid pH of the stomach activate T cells to proliferate and secrete cytokines secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine survive within macrophages survive the acid pH of the stomach ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following is true regarding anthrax? Anthrax is highly contagious Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Anthrax is caused by a virus Inhalation Anthrax requires infection with a large number of spores Anthrax is highly contagious Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Anthrax is caused by a virus Inhalation Anthrax requires infection with a large number of spores ANSWER DOWNLOAD EXAMIANS APP
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