Unit 5: CH. 20 & 21 quiz MCB Flashcards

Why did we make a series dilution of the hamburger?

Because the #'s of bacteria were likely too high to count without
diluting. So we could estimate the #'s of bacteria present in the hamburger

The changes in color of the Snyder tube from green to yellow indicates?


Intoxications have a longer incubation period than gastrointestinal
infections? T/F


Most fungal diseases of the gastrointestinal (GI) system are
intoxications rather than infections? T/F


Name the microorganisms that contributes to plaque forming on the teeth?

Streptococcus mutans

The important consideration in treating patients who have bacterial
dysentery is?

replacement of lost fluids

Rice water stools" are characteristics of?


Escherichia coli infections are:

-have been due to undercooked meat
- are often transmitted by fecal-contaminated water and food
- involve enterotoxin in traveler's disease

What disease is considered a viral infection that primarily affects
the parotid glands?


What disease was discovered by Barry Marshall and J. Robin Warren to
be caused by Helicobacter pylori?

stomach ulcers