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Microorganisms and Disease

Microorganisms and Disease
The agent responsible for causing mad cow disease is thought to be a

prion
virus
protozoan
fungus

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Microorganisms and Disease
Which of the following disease is not caused by microbial protein toxin?

Tuberculosis
Diphtheria
Shigella dysentery
Botulism

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

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

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Microorganisms and Disease
Both Mycobacterium tuberculosis and Streptococcus pneumoniae

stay in the lung and rarely, if ever, enter the bloodstream
have cell walls that contain a high content of mycolic acids
are acquired by inhalation
have polysaccharide capsules

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Microorganisms and Disease
An important host defense of human beings is a dense resident microbiota associated with

vagina
uterus
bladder
lungs

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Microorganisms and Disease
Mucus helps in protecting against pathogens by

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

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MORE MCQ ON Microorganisms and Disease

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