Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Chapter 1.4, Problem 1CC
Retrieve, Infer, Apply
3. Briefly describe the major subdisciplines in
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If you plated 100 uL of bacteria from a 10-5 dilution and count 73 colonies after incubating for 24hrs, what is the CFU/mL of the original (undiluted) culture?
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Question: Give the importance of biochemical test for the identification of the members of Enterobacteriaceae.
Chapter 1 Solutions
Prescott's Microbiology
Ch. 1.1 - Prob. 1MICh. 1.1 - MICRO INQUIRY How many of the taxa listed in the...Ch. 1.1 - Retrieve, Infer, Apply 1. How did the methods used...Ch. 1.1 - Prob. 2CCCh. 1.2 - MICRO INQUIRY Why ore the probionts pictured above...Ch. 1.2 - MICRO INQUIRY Why does the branch length indicate...Ch. 1.2 - Prob. 1CCCh. 1.2 - Retrieve, Infer, Apply 2. Explain the...Ch. 1.2 - Prob. 3CCCh. 1.2 - Prob. 4CC
Ch. 1.3 - Prob. 1CCCh. 1.3 - Prob. 2CCCh. 1.3 - Prob. 3CCCh. 1.3 - Prob. 4CCCh. 1.3 - Retrieve, Infer, Apply 2. How did Winogradsky and...Ch. 1.4 - Retrieve, Infer, Apply 3. Briefly describe the...Ch. 1.4 - Prob. 2CCCh. 1.4 - Retrieve, Infer, Apply 5. List all the activities...Ch. 1 - Prob. 1RCCh. 1 - Prob. 2RCCh. 1 - Compare, Hypothesize, Invent 2. Why arent viruses,...Ch. 1 - Compare, Hypothesize, Invent 4. Would microbiology...Ch. 1 - Compare, Hypothesize, Invent 5. Some individuals...Ch. 1 - Compare, Hypothesize, Invent 10. Support this...Ch. 1 - Prob. 5AL
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- Solve the following parts. a. What phase of the bacterial growth curve does a chemostat maintain? b. Define the term generation time? c. What is a culture medium?arrow_forwardCOMPUTATIONAL TRUE OR FALSE Milk sample A contained an average of 53 cells per FOV at a dilution factor of 7 whereas Milk sample B contained an average of 99 cells per FOV at a dilution factor of 5. Therefore, milk sample A has less microbial contamination. (Note: 0.01mL of each sample was placed on a clean glass slide and both samples were examined under OIO with an area of 1.77x10-4 cm2.)arrow_forwardDiscuss about the reagents used for agarose gel electrophoresis (not Polyacrylamide gel electrophoresis)arrow_forward
- Citrate test What will happen to the organism if it can't use the carbon source provided?arrow_forwardPls.provide the Diagnostic Key Characteristics for Genus ID of cyanobacterium E (SEE IMAGE) using the dichotomous key of Lobban & N'Yeurt (2006)arrow_forwardQ1: Why are E.coli cells subjected to heat shock induction when the optical density of the bacterial culture has reached 0.6-0.8? Q2: Why are these wash steps critical for the preparation of protein samples used in 2D gel electrophoresis?arrow_forward
- EXPERIMENT:EFFECT OF CARBON SOURCES ON THE MICROBIAL GROWTH. 1.OBJECTIVE To study the effect of media components on microbial growth 2.PROCEDURES Preparation of fungal suspension inoculums Prepare the laminar cabinet for the inoculum preparation by applying normal aseptic techniques To a full-grown fungal Petri dish, add 25ml sterilized distilled water and rub the agar gently with glass rod Pour the suspension into an empty flask and continue previous steps to achieve your desired volume of inoculums suspension. Cotton-plugged and aluminium-wrapped the mouth of inoculum flask. For certain fungal species like Niger, the suspension from the agar should be filtered upon pouring into the inoculum’s flask. Preparation of salt media of different carbon sources. Prepare the Modified Czapek Dox media by weighing the following salts according to your desired working volume. KH2PO4 (1 g/L) NaNO3 (3 g/L) MgSO4.7H2O (0.5 g/L) Carbon source (30 g/L) KCl (0.5 g/L) 2.…arrow_forwardselective media and explain its applications using specific prodving bacterial examples.arrow_forwardBradford Assay Fill in the average A595 and A595 of sample minus A595 of blank. What to do? Calculating the average absorbance of the standards Subtracting the absorbance of the blank (the sample with 0 g/ml) from the absorbance of the other samples Concentration (micrograms/ml) A595 - trial 1 A595 - trial 2 A595 - trial 3 average A595 A595 of sample minus A595 of blank 0 1.501 1.446 1.447 2 1.624 1.558 1.559 5 1.731 1.749 1.712 10 1.901 1.838 1.892 15 2.161 2.108 2.228 18 2.231 2.277 2.319arrow_forward
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