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Microorganisms and Disease

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

Low pH
All of these
Proteolytic enzymes
Dense normal flora

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

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

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

Yellow fever
Measles
Small pox
Poliomyelitis

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Microorganisms and Disease
The toxins produced by bacteria

interfere with physiological processes in the body
encourage bacterial reproduction
All of these
kill viruses

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Microorganisms and Disease
In the human disease cholera, what is it that actually ends up killing the victim?

Faulty carrier proteins
Too little water in the food stream
Dehydration and loss of nutrients
the toxin produced by the bacterium

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Microorganisms and Disease
Lactoferrin helps to protect against pathogens by

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

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