Microbiology with Diseases by Body System (4th Edition)
4th Edition
ISBN: 9780321918550
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 25, Problem 8MC
Summary Introduction
Introduction:
Water treatment is the process through which wastewater is converted into an effluent that can be returned into the water cycle. In chemical wastewater treatment, certain chemicals are used for the purification of water.
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Secondary metabolites of microbes are formed during thephase of growth.a. exponential b. stationary c. lag d. death
Media, such as Mueller-Hinton agar, that neither restricts the growth of certain microbes
nor distinguishes between the types microbes that do grow is:
Incorrect Answer:
B. Differential only
Correct Answer:
O
C. General purpose
Rationale:
a) Biofilm is:
a.
a complex established community of microorganisms on solid surfaces
b.
is a layer of millions of identical bacteria on solid surfaces
c.
is a layer of compounds released from the tissue as a protection against pathogenic microorganisms
d.
All of these are correct
b)
Capsule formation is associated with the virulence of pathogenic bacteria. Why? Select all that apply.
a.
They are sticky and attach better
b.
They can escape phagocytosis
c.
The capsule makes them grow/multiply faster
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They kill immune cells
Chapter 25 Solutions
Microbiology with Diseases by Body System (4th Edition)
Ch. 25 - Prob. 1TMWCh. 25 - Prob. 2TMWCh. 25 - Prob. 1MCCh. 25 - Prob. 2MCCh. 25 - Prob. 3MCCh. 25 - Prob. 4MCCh. 25 - Prob. 5MCCh. 25 - Strains of the bacterium Pseudomonas syringae have...Ch. 25 - Prob. 7MCCh. 25 - Prob. 8MC
Ch. 25 - Prob. 9MCCh. 25 - Prob. 19MCCh. 25 - Lyophilization in food preservation is by...Ch. 25 - Prob. 1MTFCh. 25 - Prob. 2MTFCh. 25 - Prob. 3MTFCh. 25 - Prob. 4MTFCh. 25 - Prob. 5MTFCh. 25 - Intrinsic factors affecting food spoilage are...Ch. 25 - Prob. 2FIBCh. 25 - Prob. 3FIBCh. 25 - Potable water is allowed to have ________...Ch. 25 - A ________ is a device composed of microbes and...Ch. 25 - Prob. 10FIBCh. 25 - Prob. 1MCh. 25 - Why does the application or recombinant DNA...Ch. 25 - Given what you know about microbial nutrition and...Ch. 25 - Prob. 3CTCh. 25 - Prob. 4CTCh. 25 - Even though water and wastewater undergo...Ch. 25 - Take a critical look at the garbage in all of your...Ch. 25 - Prob. 7CTCh. 25 - Explain why sakesometimes called rice winewould be...Ch. 25 - Prob. 10CTCh. 25 - Prob. 11CTCh. 25 - Suggest why neither the original food involved nor...Ch. 25 - Prob. 13CTCh. 25 - Prob. 14CTCh. 25 - Prob. 1CMCh. 25 - A blogger stated that germs (microorganisms) are...Ch. 25 - Compare human, animal, and plant pathogens that...Ch. 25 - A microbiome is composed of _____. a. single, pure...Ch. 25 - In the environment, nutrients are generally _____....Ch. 25 - Prob. 12MCCh. 25 - Prob. 13MCCh. 25 - Nitrification converts _____. a. organic nitrogen...Ch. 25 - Prob. 15MCCh. 25 - Which of the following diseases is not caused by...Ch. 25 - Of the following characteristics, which would...Ch. 25 - Anammox reactions are ____. a. anaerobic and pan...Ch. 25 - Prob. 6MTFCh. 25 - Modified True/False 1. _____ Biofilms of...Ch. 25 - Prob. 8MTFCh. 25 - Modified True/False 3. __________ Aquatic...Ch. 25 - Prob. 10MTFCh. 25 - Fill in the Blanks 1. Leaching of compounds from...Ch. 25 - Prob. 6FIBCh. 25 - Prob. 7FIBCh. 25 - Prob. 8FIBCh. 25 - Prob. 1VICh. 25 - Prob. 2VICh. 25 - Prob. 8CTCh. 25 - Microbes are found mostly in topsoil, but some are...
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- 1. The Petri Dish method is used in microbiology to raise bacteria in: a) rapid growth b) pure culture c) septic environment d) all of the above 2. What is the difference between antiseptic and sanitization? 3. In order to prevent any kind of contamination the medium must be _________ before placing it in the Petri dish. a) lyophilized b) pasteurized c) autoclaved d) distilledarrow_forwardWhich ONE of the following best describes the abbreviation ‘MIC’? Select one: A. The lowest concentration at which no microbial growth is detected B. The lowest concentration that indicates whether an antibiotic would be effective or not C. The lowest concentration which is not toxic to the host D. The lowest concentration which is least effective against the organism E. The lowest concentration which kills the organismarrow_forwardWhich of the following is not true about biofilms a) are caused by many Gram positive and Gram negative bacteria as well as algae and fungi b) are highly contagious c) are hard to treat due to impermeability to drugsarrow_forward
- Answer the attached picture below briefly and concisely.arrow_forwardA microbe causing a bloodstream infection is likely all of the following except A. A chemotroph B. A parasite C. A heterotroph D. A thermophilearrow_forwardWhich of the following is not a matching pair?a) Potable water—presence of pathogensb) High BOD—high organic contentc) Stabilized sludge—fertilizerd) Primary treatment—removal of material that settlese) Bulking—growth of filamentous bacteriaarrow_forward
- 3. (a) Comparing the culture-dependant (e.g., colony forming units count) and DNA- based (e.g., PCR) bacterial number quantification methods, what are the primary disadvantages of using culture-dependent methods to quantify bacterial numbers in an environmental sample? Use no more than three sentences or bullet points to present your answer succinctly.arrow_forwardWhich of the following microbes produces a natural biopesticide?a. Penicillium chrysogenum b. Saccharomyces cerevisiae c. Bacillus thuringiensis d. Lactobacillus bulgaricusarrow_forwardWhy does secondary treatment of wastewater require O2? A. Secondary treatment relies on anaerobic microbes to oxidize organic material. B.Secondary treatment relies on anaerobic microbes to reduce organic material. C.Secondary treatment relies on aerobic microbes to oxidize organic material. D.Photosynthetic bacteria are involved in secondary treatment and they require O2. E. Flocs require oxygen to facilitate biofilm formation.arrow_forward
- ) Microorganisms are involved in each of the following processes a. infection. b. decomposition of organic material: C. O2 production. d. food production. All of the above 2) The term used to misarrow_forwardMicroorganisms are needed in wastewater treatment facility to do the actual breakdown and removal of nutrients and organic matter in the waste matter. One day, the employee who is in-charge of the facility notice that as the time goes by after the wastewater was loaded into the medium the metabolic activity of the microbe cease to increase and remain stable instead. Within the context of our discussion, what could be the possible explanation for the employee’s observation?arrow_forwardListen Which of the following regarding controlling microbial growth is true? a) Microbial death rate increases with an increase in temperature b) The more microbes present, the shorter amount of time it will take to kill the population E c) Gram-positive bacteria tend to be more resistant to chemicals than gram- negative bacteria d) Microbial death rate increases as pH approaches 7 (neutral) Previous Page Submit Quiz $ R Next Page 5 of 10 questions saved % H K Page 4 of 10arrow_forward
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