Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Chapter 22.1, Problem 7CC
Summary Introduction
The nutrition is a universal factor that is required to carry out actions and
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A chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules.
From where does this organism obtain its carbon?
Staphylococcus aureus is non-motile, a facultative anaerobe, and a mesophile. At 37⁰C in abundant glucose, which incubation environment is more likely to produce the highest cell mass of S. aureus within two hours?
Flask with aeration to add oxygen to the broth and shaking
Flask left on the lab bench
Flask grown in an anaerobic chamber that removes oxygen from the air around the flask
Flask without aeration
All will be equal
List 5 temperature requirements for bacterial growth. Explain the temperature ranges and where do infectious bacteria fall in the
temperature range and requirements.
Chapter 22 Solutions
Prescott's Microbiology
Ch. 22.1 - What would Rhodospirillum rubrum use for carbon...Ch. 22.1 - How are bacterial cysts different from the...Ch. 22.1 - If Caulobacter bacteria were grown in a...Ch. 22.1 - What steps are also found in the TCA cycle? What...Ch. 22.1 - Why do nitrifying microbes possess intracellular...Ch. 22.1 - Prob. 6MICh. 22.1 - Prob. 1CCCh. 22.1 - Prob. 2CCCh. 22.1 - Prob. 3CCCh. 22.1 - Compare and contrast the life cycle of members of...
Ch. 22.1 - Prob. 5CCCh. 22.1 - Prob. 6CCCh. 22.1 - Prob. 7CCCh. 22.1 - Prob. 8CCCh. 22.2 - MICRO INQUIRY Suggest why N. europaea has PTS...Ch. 22.2 - MICRO INQUIRY Identify the reactions that...Ch. 22.2 - Prob. 1CCCh. 22.2 - Prob. 2CCCh. 22.2 - Prob. 3CCCh. 22.2 - How do colorless sulfur bacteria obtain energy by...Ch. 22.2 - Prob. 5CCCh. 22.3 - Prob. 1MICh. 22.3 - Prob. 2MICh. 22.3 - Prob. 3MICh. 22.3 - Prob. 1CCCh. 22.3 - Prob. 2CCCh. 22.3 - Prob. 3CCCh. 22.3 - Prob. 4CCCh. 22.3 - Prob. 5CCCh. 22.3 - Prob. 6CCCh. 22.3 - Prob. 7CCCh. 22.4 - Prob. 1MICh. 22.4 - What general features are common to most...Ch. 22.4 - Prob. 2CCCh. 22.4 - Prob. 3CCCh. 22.4 - Characterize Bdellovibrio spp. and outline the...Ch. 22.4 - Compare the growth of a myxobacterium in...Ch. 22.5 - What property unifies -proteobacteria?Ch. 22.5 - Prob. 2CCCh. 22.5 - Prob. 3CCCh. 22 - Prob. 1RCCh. 22 - Prob. 2RCCh. 22 - Prob. 3RCCh. 22 - Prob. 4RCCh. 22 - Prob. 5RCCh. 22 - Prob. 6RCCh. 22 - Prob. 7RCCh. 22 - Prob. 8RCCh. 22 - Prob. 9RCCh. 22 - Prob. 1ALCh. 22 - Prob. 2ALCh. 22 - Prob. 3ALCh. 22 - Prob. 4ALCh. 22 - Prob. 5ALCh. 22 - Prob. 6ALCh. 22 - Prob. 7ALCh. 22 - Prob. 8ALCh. 22 - Prob. 9AL
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- A chemolithoautotroph is respiring using only iron (Fe3+) and nitrite (NO2-). This bacterium does not consume organic molecules. . Describe one possible problem that may occur if this organism grows in the presence of oxygenarrow_forwardExplain why sulfa drugs prevent bacterial growth without harming the human host.arrow_forwardwhat does a negative result mean in an oxidase test?Select all that applies a)The bacteria may undergo anaerobic respiration b)The bacteria may have a cytochrome C oxidase c)The bacteria may undergo aerobic respiration d)The bacteria will not have cytochrome C oxidase e)None of the anwers are correctarrow_forward
- a.Describe what makes thioglycollate medium suitable for culturing anaerobes. What would the growth patterns of Clostridium sporogenes and Micrococcus luteus be in this medium? b. In the Kligler test, why do we inoculate the surface of the agar slope and then stab into the butt of the slope? What does a pink coloured colony indicate when using MAC (MacConkey Agar)?arrow_forwardIdentify the oxidase-negative, gram negative bacillus isolated from the blood cultures of a hospitalized patient with a urinary tract infection. The organism produced colorless colonies on MacConkey agar and gives the following biochemical reactions: PAD – positive H2S – positive positive Citrate – positive Ornithine positive Lysine – negative Indole - negative Urease –arrow_forwardexplain how the use of an Eosin methylene blue agar plate can help determine the type of fermenters that bacteria are. explain throughly.arrow_forward
- Material (wound discharge) from a patient with suspected anaerobic wound infection was sent to the bacteriological laboratory. It is necessary to isolate a pure culture of anaerobic bacteria. 1. What principle of isolation of pure culture of anaerobic microorganisms will be applied? 2. What methods of creating anaerobic conditions with the participation of aerobic microorganisms are known? 3. What are the methods of controlling anaerobic conditions?arrow_forwardIdentify the function of the following enzymes: Superoxide dismutase (SOD)arrow_forwardBacterial generation times for four different bacterial species were calculated in the media listed in Table 6.3. All media were prepared with pure distilled water and incubated aerobically in the light. Compare and contrast the growth requirements of the four bacteria listed above. Which of the media, if any, are chemically defined?| Generation Time Escherichia coli Pseudomonas Lactobacillus Nitrobacter Medium aeruginos a NaCl, NO3", MgSO4 80 Glucose 100 Glucose, NaCl, PO43- Glucose, NaCl, PO43-, MgSO4 Glucose, NaCl, PO4-, MgSO4, 56 200 43 100 28 40 8 amino acids Glucose, NaCl, PO43-, MgSO4, 25 25 80 19 amino addsarrow_forward
- Describe the growth of Staphylococcus aureus and Saccharomyces cerevisiae at low pH (3-3.5).arrow_forwardyou grew streak plates of Clostridium sporogenes under both aerobic and anaerobic conditions. Which plates showed bacterial growth, and what does the zone around the metronidazole disc represent? Additionally, explain what types of bacterial growth metronidazole affects and why.arrow_forwardDifferentiate the growth curve exhibited by the same inoculum under the following conditions. Draw and label the parts of your growth curve. A). If it is exponentially growing and inoculated in the same nutritious medium under the same optimum conditions. B). If it is taken from an old culture and inoculated into the same nutritious medium and incubated under the same optimum conditions in (A). C). If it is taken from an old culture and inoculated to a different and less nutritious medium and incubated under the same optimum conditions as (A).arrow_forward
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