Prescott's Microbiology
10th Edition
ISBN: 9781259281594
Author: Joanne Willey, Linda Sherwood Adjunt Professor Lecturer, Christopher J. Woolverton Professor
Publisher: McGraw-Hill Education
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Chapter 7.5, Problem 1RIA
Summary Introduction
The biofilms are mostly formed by the bacteria that are grow on the surfaces. The biofilms are a mixture of proteins, polysaccharides, and
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Chapter 7 Solutions
Prescott's Microbiology
Ch. 7.1 - MICRO INQUIRY In addition to chromosomes, what...Ch. 7.2 - MICRO INQUIRY Why is it important that the origin...Ch. 7.2 - MICRO INQUIRY What would be the outcome if FtsZ...Ch. 7.2 - MICRO INQUIRY Which step in the development of...Ch. 7.2 - Retrieve, Infer, Apply 1. Describe the three...Ch. 7.2 - Retrieve, Infer, Apply 2. How does the bacterial...Ch. 7.2 - Retrieve, Infer, Apply 3. Do you think MinCDE...Ch. 7.2 - Retrieve, Infer, Apply 4. Do you think Spiroplasma...Ch. 7.3 - What elements of the Sulfolobus spp. cell cycle...Ch. 7.3 - Many archaea have genes encoding an FtsZ...
Ch. 7.4 - What is the difference between halophilic and...Ch. 7.4 - Why do facultative anaerobes grow best at the...Ch. 7.4 - Retrieve, Infer, Apply 1. How do microorganisms...Ch. 7.4 - Retrieve, Infer, Apply 2. Define water activity...Ch. 7.4 - What are halophiles and why do Halobacterium spp....Ch. 7.4 - Retrieve, Infer, Apply 1. Define pH, acidophile,...Ch. 7.4 - Retrieve, Infer, Apply Classify each of the...Ch. 7.4 - Retrieve, Infer, Apply 3. Describe the mechanisms...Ch. 7.4 - Retrieve, Infer, Apply 1. What are cardinal...Ch. 7.4 - Prob. 3.2RIACh. 7.4 - Define psychrophile, psychrotolerant, mesophile,...Ch. 7.4 - Retrieve, Infer, Apply What metabolic and...Ch. 7.4 - Retrieve, Infer, Apply Describe the five types of...Ch. 7.4 - Retrieve, Infer, Apply What are the toxic effects...Ch. 7.4 - Retrieve, Infer, Apply Where would you expect to...Ch. 7.4 - Retrieve, Infer, Apply List the types of...Ch. 7.4 - Prob. 5.3RIACh. 7.4 - Prob. 5.4RIACh. 7.5 - MICRO INQUIRY What biomolecules make up the...Ch. 7.5 - Prob. 1RIACh. 7.5 - Prob. 2RIACh. 7.5 - Retrieve, Infer, Apply What is quorum sensing?...Ch. 7.5 - Retrieve, Infer, Apply How is the communication...Ch. 7.6 - Prob. 1RIACh. 7.6 - What are peptones, yeast extract, beef extract,...Ch. 7.6 - Retrieve, Infer, Apply Describe four ways in which...Ch. 7.6 - What are pure cultures and why are they important?...Ch. 7.6 - Retrieve, Infer, Apply It is known that microbial...Ch. 7.6 - Retrieve, Infer, Apply How might an enrichment...Ch. 7.7 - MICRO INQUIRY Identify the regions of the growth...Ch. 7.7 - Retrieve, Infer, Apply Define microbial growth.Ch. 7.7 - Retrieve, Infer, Apply Describe the phases of the...Ch. 7.7 - Why would cells that are vigorously growing when...Ch. 7.7 - Retrieve, Infer, Apply Contrast and compare the...Ch. 7.7 - Calculate the growth rate constant and generation...Ch. 7.7 - Suppose the generation time of a bacterium is 90...Ch. 7.8 - Why is it important to have no more than about 250...Ch. 7.8 - Briefly describe each technique by which microbial...Ch. 7.8 - Prob. 2RIACh. 7.8 - Prob. 3RIACh. 7.8 - For each of the following, which enumeration...Ch. 7.9 - Prob. 1MICh. 7.9 - Prob. 1RIACh. 7.9 - Prob. 2RIACh. 7.9 - Prob. 3RIACh. 7 - As an alternative to diffusible signals, suggest...Ch. 7 - If you wished to obtain a pure culture of bacteria...Ch. 7 - Design an experiment to determine if a...Ch. 7 - Suggest one specific mechanism underlying the...Ch. 7 - Consider cell-cell communication: bacteria that...Ch. 7 - Suppose you discovered a new bacterial strain from...Ch. 7 - Because many persistent bacterial infections...
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- Describe a feature of Rhizobium radiobacter that makes it a useful tool in biotechnology.arrow_forwardOME THEORY MEDIA MISSION What would you expect to see if you cultured Gram-positive, lactose-fermenting bacteria on MacConkey agar? a) Yellow agar with pink colonies b) Pink agar with no colonies c) Pink agar with pink colonies d) Yellow agar with pale colonies VIEW THEORYarrow_forwardRecall the major concepts in industrial microbiology.arrow_forward
- xplain the four stages of the growth curve for a microorganism. What is the generation time? Which aspect of the growth curve is used to calculate the generation time and why? How is the generation time calculated and why does it make sense that E.coli and M.tuberculosis have such drastically different generation times?arrow_forwardHow would you enrich for an organism that can use phenol as a carbon source?arrow_forwardWhy is the effectiveness of an antimicrobial agent determined using an exponentially growing bacterial culture? Please explain.arrow_forward
- How might an enrichment culture be used to isolate bacteria capable of growing photoautotrophically from a mixed microbial assemblage?arrow_forwardMicrobiology Briefly describe any THREE CATEGORIES (three modes of action) of antibacterial drugs. Make sure to tell how they work and how bacteria have become resistant to them.arrow_forwardEXPERIMENT: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_forward
- Mention two current commercial and environmental applications of Penicillium sp. Predict the microbe's probable applications.arrow_forwardHow an enrichment culture can be used to isolate bacteria capable of growing photoautotrophically from a mixed microbial assemblage?arrow_forwardWhat makes a culture media as SELECTIVE? Explain and provide examples of selective type of culture media.arrow_forward
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