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Microorganisms and Disease

Microorganisms and Disease
Which of these cytokines is also known under the name cachectin?

Interleukin 2
Interferon gamma
None of these
Tumor necrosis factor (TNF)

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Microorganisms and Disease
Mucus helps in protecting against pathogens by

facilitating the growth of normal flora
sequestering Iron
lowering the pH
blocking access and attachment of pathogens to mucosal surfaces

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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

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

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

Dense normal flora
Low pH
Proteolytic enzymes
All of these

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Microorganisms and Disease
All infections do not cause fever and all fevers are not due to infections which of the following is an example of non-infections cause of fever?

Typhoid
Rheumatic disease
Chicken pox
Malaria

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