Microorganisms and Disease Which is not a major defense mechanism in the stomach? Proteolytic enzymes Dense normal flora All of these Low pH Proteolytic enzymes Dense normal flora All of these Low pH ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease The toxins produced by bacteria interfere with physiological processes in the body All of these kill viruses encourage bacterial reproduction interfere with physiological processes in the body All of these kill viruses encourage bacterial reproduction ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Which of the following is common in the disease caused by Coryne-bacterium diphtheriae and Bacillus anthracis? 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 Both organisms cause skin and respiratory tract infections The most serious disease symptoms are the direct result of toxin action ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Each of the 3 virulence factors of Bacillus anthracis i.e. the capsule, edema toxin and lethal toxin can affect the activity of ciliated epithelial cells M cells macrophages B cells ciliated epithelial cells M cells macrophages B cells 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? Diphtheria Botulism Shigellosis Tetanus Diphtheria Botulism Shigellosis Tetanus ANSWER DOWNLOAD EXAMIANS APP
Microorganisms and Disease Lactoferrin helps to protect against pathogens by lowering the pH blocking sebum production facilitating the growth of normal flora sequestering Iron lowering the pH blocking sebum production facilitating the growth of normal flora sequestering Iron ANSWER DOWNLOAD EXAMIANS APP