Caution should be taken when culturing blood in suspected cases of Mycoplasma infections since the organism is inhibited by which anticoagulant commonly found in commercial blood culture media?
a. Ethylenediaminetetraacetic acid (EDTA)
b. Sodium polyanethol sulfonate (SPS)
c. Heparin
d. Sodium citrate
B
Blood for culture of genital mycoplasmas should be collected without anticoagulants and imme-diately inoculated into an appropriate broth culture medium. SPS, the anticoagulant typically found in commercial blood culture media, inhibits Mycoplasmas.
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The most important events in human development occur during the ____
a. week before birth b. month before birth c. first trimester d. second trimester e. third trimester
Biofilms
A. are a haphazard mixture of bacteria. B. are a polysaccharide-encased community of microorganisms. C. may enhance bioremediation efforts. D. may protect organisms against harmful chemicals. E. are a polysaccharide-encased community of microorganisms, may enhance bioremediation efforts, AND may protect organisms against harmful chemicals.
One of the most critical adaptations of the reptiles in relation to their life on land is the evolution of the
A. amniotic egg. B. allantois egg. C. chorionic egg. D. swim bladder. E. diploid egg.
A smear from a mixed culture of bacilli and cocci is stained with the acid-fast procedure. This is an image of the stained smear at 1000X total magnification. Which of the bacteria, if any, are acid-fast?
A. The cocci are acid fast B. Neither the bacilli nor the cocci are acid-fast. C. Both the bacilli and cocci are acid-fast D. The bacili are acid fast