Which of the following is NOT a characteristic of viruses?
A) they are visible with a light microscope.
B) they are acellular.
C) they are composed of genetic material and protein.
D) they are smaller than prokaryotic cells.
E) they are obligatory parasites.
Answer: A
Microbiology
- Which of the following pairs is not correctly matched?
- Mycoplasmas differ from other bacteria because they
- All of the following are motile; which does not have flagella?
- What should you do if you suspect a patient has tuberculosis?
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- Pathogenic bacteria are easily identified because they
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- Which one of the following does not belong with the others?
- Which of the following pairs is mismatched?
- You have isolated an aerobic gram-positive, endospore-forming bacterium that grows wells on nutrient agar. To which of the following groups does it most likely belong?
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- You have isolated a prokaryotic cell. The first step in identification is a(n)
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- You have isolated a gram-positive rod. What should you do next?
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- All of the following are gram-positive. Which does not belong with the others?
- Streptomyces differs from Actinomyces because Streptomyces
- Which of the following is the best reason to classify Streptococcus in the Lactobacillales?
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- Both Beggiatoa and the purple sulfur bacteria use H 2S. These bacteria differ because Beggiatoa
- The bacteria responsible for more infections and more different kinds of infections are
- Which one of the following does not belong with the others?
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- All of the following are true about the causative agent of Rocky Mountain spotted fever except