Media that can be used for the isolation of Mycoplasma include:
a. Thayer-Martin agar with vitamin K.
b. 5% sheep blood and IsoVitaleX.
c. beef or soybean protein with serum and fresh yeast extract.
d. hemin and nicotina-mide-adenine-dinucleotide (NAD) sup-plements.
C
In general, the medium for Mycoplasma isolation contains a beef or soybean protein with serum, fresh yeast extract, and other factors. Because these organisms grow more slowly than most other bacteria, the media must be selective to prevent the overgrowth of faster-growing organisms that may be present in a clinical sample.
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Answer the following statement true (T) or false (F)
The three domains of life are ____
a. eukaryotes, prokaryotes, and viruses b. animals, plants, and microorganisms c. Prokaryota, Eukaryota, and Protostista d. Archaebacteria, Eubacteria, and Eukaryota e. Archaea, Bacteria, and Eukarya
The same bacteria that are associated with periodontitis are associated with:
a. atherosclerosis b. the common cold c. influenza d. tuberculosis e. stomach ulcers
It is considered healthy to have high levels of high-density lipoproteins (HDL). Why is this true?
A) HDL is a form of saturated fat. B) HDL moves cholesterol to the liver for disposal. C) HDL moves cholesterol to the heart. D) HDL is important in making complete proteins.