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Microorganisms and Disease

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

protozoan
fungus
virus
prion

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

bladder
uterus
lungs
vagina

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Microorganisms and Disease
Pseudomembraneous colitis is

caused by a spore-forming bacterium
precipitated by the use of certain antibiotics
All of these
caused by a gram-positive bacterium

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Microorganisms and Disease
Both Mycobacterium tuberculosis and Streptococcus pneumoniae

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

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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
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
M cells
B cells

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MORE MCQ ON Microorganisms and Disease

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