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Microorganisms and Disease

Microorganisms and Disease
Which is not a major defense mechanism in the stomach?

Proteolytic enzymes
Dense normal flora
All of these
Low pH

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Microorganisms and Disease
Which of the following disease is caused by DNA viruses?

Small pox
Poliomyelitis
Measles
Yellow fever

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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
macrophages
B cells
M cells

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Microorganisms and Disease
Lactoferrin helps to protect against pathogens by

lowering the pH
facilitating the growth of normal flora
sequestering Iron
blocking sebum production

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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
lowering the pH
sequestering Iron

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Microorganisms and Disease
Coxsackie virus B3, a subgroup of enteroviruses, commonly causes

gastroenteritis
myocarditis
muscular dystrophy
acute hemorrhagic conjunctivitis

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