Microorganisms and Disease Which is not a major defense mechanism in the stomach? Dense normal flora Proteolytic enzymes Low pH All of these Dense normal flora Proteolytic enzymes Low pH All of these ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Lactoferrin helps to protect against pathogens by sequestering Iron blocking sebum production facilitating the growth of normal flora lowering the pH sequestering Iron blocking sebum production facilitating the growth of normal flora lowering the pH ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease An important host defense of human beings is a dense resident microbiota associated with lungs vagina uterus bladder lungs vagina uterus bladder 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 survive within macrophages 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 the acid pH of the stomach survive within macrophages secrete LT (heat labile toxin) and ST (heat stable toxin) into the lumen of the intestine activate T cells to proliferate and secrete cytokines ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease What is common in catheters and ventilators? They bypass important defenses of the body They are used primarily in neonatal intensive care units Bacteria responsible for associated infections are usually susceptible to antibiotics They predispose patients to viral rather than bacterial infections They bypass important defenses of the body They are used primarily in neonatal intensive care units Bacteria responsible for associated infections are usually susceptible to antibiotics They predispose patients to viral rather than bacterial infections 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 The pathogen contains mycolic acid in its cell wall None of these Antibodies to the pathogen are protective The pathogen can live inside macrophages The pathogen contains mycolic acid in its cell wall None of these Antibodies to the pathogen are protective ANSWER DOWNLOAD EXAMIANS APP
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