Microbiology: An Introduction
12th Edition
ISBN: 9780321929150
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case
Publisher: PEARSON
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Textbook Question
Chapter 1, Problem 7MCQ
It has been said that bacteria are essential for the existence of life on Earth. Which of the following is the essential function performed by bacteria?
- a. control insect populations
- b. directly provide food for humans
- c. decompose organic material and recycle elements
- d. cause disease
- e. produce human hormones such as insulin
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Students have asked these similar questions
Select a statement that is not true about bacteria
A.
Some bacteria cause human disease
B.
Some bacteria are autotrophs
C.
Bacteria can be found within rocks kilometers below the Earth’s surface
D.
All organisms with cells containing a membrane-enclosed nucleus and organelles are eukaryotes, whereas all organisms with cells lacking a membrane-enclosed nucleus and organelles are bacteria
Bacteria that can survive in extreme environments are called:
a-Anaerobes
b-Saprophytes
c-Aerobes
d-Archaebacteria
Which of the following BEST describes an agent that is bacteriostatic?
A) It suspends bacterial synthesis of Tranexamic Acid.
B) It kills the bacteria by destroying its cell wall.
C) It zaps the bacteria with static electricity.
D) It suspends bacterial growth.
Chapter 1 Solutions
Microbiology: An Introduction
Ch. 1 - Review 1. How did the idea of spontaneous...Ch. 1 - Briefly state the role microorganisms play in each...Ch. 1 - Into which field of microbiology would the...Ch. 1 - Match the microorganisms in column A to their...Ch. 1 - Match the people in column A to their contribution...Ch. 1 - It is possible to purchase the following...Ch. 1 - NAME IT What type of microorganism has a...Ch. 1 - DRAW IT Show where airborne microbes ended up in...Ch. 1 - Prob. 1MCQCh. 1 - Which of the following is not a characteristic of...
Ch. 1 - Which of the following is the most important...Ch. 1 - Recombinant DNA is a. DNA in bacteria. b. the...Ch. 1 - Which of the following statements is the best...Ch. 1 - Which of the following is a beneficial activity of...Ch. 1 - It has been said that bacteria are essential for...Ch. 1 - Prob. 8MCQCh. 1 - Spallanzanis conclusion about spontaneous...Ch. 1 - Which of the following statements about E. coli is...Ch. 1 - How did the theory of biogenesis lead the way for...Ch. 1 - Even though the germ theory of disease was not...Ch. 1 - Prob. 3ACh. 1 - Find at least three supermarket products made by...Ch. 1 - People once believed all microbial diseases would...Ch. 1 - Prob. 1CAECh. 1 - In 1864, Lister observed that patients recovered...
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- The process of freezing food: a. makes oxygen unavailable to pathogenic bacteria b. makes liquid water unavailable to pathogenic bacteria c. slows bacterial metabolism to a very low rate d. emulsifies pathogenic bacteria e. causes pathogenic bacteria to form ketone bodies to endure the “hibernation conditions”arrow_forwardMany of the first prokaryotes to be cultured in a scientific lab were human or animal pathogens. Why would these species be more readily cultured than non-pathogenic prokaryotes? a. Pathogenic prokaryotes are hardier than nonpathogenic prokaryotes. b. Non-pathogenic prokaryotes require more supplements in their growth media. c. Most of the necessary culture conditions could be inferred for pathogenic prokaryotes. d. Pathogenic bacteria can grow as free bacteria, but non-pathogenic bacteria only grow as parts of large colonies.arrow_forwardWhich of these statements is true? a. An antibiotic is any substance produced by a organism that is antagonistic to the growth of prokaryotes. b. An antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of other viruses. c. An antibiotic is any substance produced by a prokaryote that is antagonistic to the growth of eukaryotic cells. d. An antibiotic is any substance produced by a prokaryote that prevents growth of the same prokaryote.arrow_forward
- the largest population of bacteria live within the _____________. a. large intestine b. stomach c. esophagus d. small intestinearrow_forwardThe Golden Age of Microbiology was the time whena) microorganisms were first used to make bread.b) microorganisms were first used to make cheese.c) most pathogenic bacteria were identified.d) a vaccine against influenza was developed.e) antibiotics became available.arrow_forwardWhich group of bacteria contains the gram-positive, anaerobic bacterium that causes botulism? (a) clostridia (b) actinomycetes (c) enterobacteria (d) spirochetes (e) streptococciarrow_forward
- Your friend believes that prokaryotes are always detrimental and pathogenic. How would you explain to them that they are wrong?arrow_forwardA recent study found that 480 Streptomyces strains freshly isolated from the soil are resistant to at least six different antibiotics. In fact, some isolates are resistant to 20 different antibiotic drugs.Why do you think these bacteria (which are neither pathogenic nor exposed to human use of antibiotics) are resistant to so many drugs? What might be the implications for human bacterial pathogens?arrow_forwardNew cells generate from(a) bacterial fermentation (b) regeneration of old cells (c) pre-existing cells (d) abiotic materialsarrow_forward
- How do Gram-negative bacteria differ from Gram-positivebacteria?a. They are not pathogenic.b. Their peptidoglycan cell wall is thinner.c. Gram-negative bacteria cannot be Gram stained.d. They possess a single plasma membrane.e. Gram-negative bacteria do not photosynthesize.arrow_forwardWhat is the relationship between normal flora Escherichia coli (E. coli) and STEC? A When normal flora E.coli divide in two, they sometimes turn into STEC. B Everyone is colonized by STEC but only some people have non-STEC microbes in the large intestine. C Normal flora E.coli do not make Shiga toxin, but STEC are E. coli that do make Shiga toxin.arrow_forwardSome groups of bacteria can go dormant during periods of environmental stress through the formation of _______. A) magnetosomes B) peptidoglycan C) endospores D) piliarrow_forward
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