Microorganisms and Disease Lactoferrin helps to protect against pathogens by sequestering Iron lowering the pH facilitating the growth of normal flora blocking sebum production sequestering Iron lowering the pH facilitating the growth of normal flora blocking sebum production 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? Shigellosis Diphtheria Botulism Tetanus Shigellosis Diphtheria Botulism Tetanus ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following is true regarding anthrax? Inhalation Anthrax requires infection with a large number of spores Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Anthrax is highly contagious Anthrax is caused by a virus Inhalation Anthrax requires infection with a large number of spores Inhalation anthrax and cutaneous anthrax are caused by separate strains of Bacillus anthracis Anthrax is highly contagious Anthrax is caused by a virus 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 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 survive the acid pH of the stomach ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following statements is not true regarding Mycobacterium tuberculosis and/or the disease it causes? Antibodies to the pathogen are protective The pathogen can live inside macrophages None of these The pathogen contains mycolic acid in its cell wall Antibodies to the pathogen are protective The pathogen can live inside macrophages None of these The pathogen contains mycolic acid in its cell wall ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease A major difference between EHEC and EPEC is EHEC secretes a Shiga-like toxin and EPEC does not EPEC passes through the placenta to infect the fetus and EHEC does not EPEC rearranges host cell actin and EHEC does not EHEC possesses a type III secretion system and EPEC does not EHEC secretes a Shiga-like toxin and EPEC does not EPEC passes through the placenta to infect the fetus and EHEC does not EPEC rearranges host cell actin and EHEC does not EHEC possesses a type III secretion system and EPEC does not ANSWER DOWNLOAD EXAMIANS APP
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