A pastry chef accidentally inoculated a cream pie with six S. aureus cells. If S. aureus has a generation time of 60 minutes, how many cells would be in the cream pie after 7 hours?
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The following outline can be used to identify important bacteria. Fill in a representative genus in the space provided.
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Verified Solution
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Key Concepts
Bacterial Classification
Genus and Species Nomenclature
Morphological Characteristics
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Which of the following is not a characteristic of biofilms?
a. antibiotic resistance
b. hydrogel
c. iron deficiency
d. quorum sensing
bacterial culture was in log phase in the following figure. At time , an antibacterial compound was added to the culture. Draw the lines indicating the addition of a bactericidal compound and a bacteriostatic compound. Explain why the viable count does not immediately drop to zero at x. <IMAGE>
If you Gram-stained the bacteria that live in the human intestine, you would expect to find mostly
a. gram-positive cocci.
b. gram-negative rods.
c. gram-positive, endospore-forming rods.
d. gram-negative, nitrogen-fixing bacteria.
e. all of the above.
Compare and contrast each of the following:
a. Cyanobacteria and algae
b. Actinomycetes and fungi
c. Bacillus and Lactobacillus
d. Pseudomonas and Escherichia
e. Leptospira and Spirillum
f. Escherichia and Bacteroides
g. Rickettsia and Chlamydia
h. Mycobacterium and Mycoplasma
Which of the following does not belong with the others?
a. Enterobacteriales
b. Lactobacillales
c. Legionellales
d. Pasteurellales
e. Vibrionales