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16 Cards in this Set
- Front
- Back
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Acyl homoserine lactone produced by luxI of Vibrio fisherii is an example of
Choose one answer. a. an autoinducer b. an inducer c. a repressor d. a bioluminescent molecule |
a. an autoinducer
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Fermentation can be defined as completion of metabolism:
Choose one answer. a. without an electron transport system b. without a terminal electron acceptor c. without further production of ATP after a few substrate-level phosphorylation reactions d. in the absence of oxygen e. all of the above |
e. all of the above
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The following is correct with respect to anaerobic photosystem I:
Choose one answer. a. PS I separates electrons associated with hydrogens from H2S. b. PS I separates electrons from organic electron donors such as succinate. c. PS I separates electrons from Fe2+. d. All of the above. e. None of the above. |
d. All of the above.
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Which of the following forms of energy production does not use a proton gradient to synthesize ATP?
Choose one answer. a. fermentation b. oxidative respiration c. phototrophy d. All forms of energy production require a proton motive force. |
a. fermentation
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Malolactic fermentation is a step in the production of what food?
Choose one answer. a. wine b. beer c. yogurt d. chocolate e. soy sauce |
a. wine
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__________ within the mound of cocoa beans generates heat faster than it can dissipate.
Choose one answer. a. Indigenous fungi b. Thermophiles c. Fermentation d. Anaerobic respiration e. Oxidative respiration |
e. Oxidative respiration
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Soy sauce is produced by fermentation with Aspergillus and then with halotolerant __________.
Choose one answer. a. bacteria b. fungi c. algae d. chemical e. salt |
a. bacteria
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__________ produce thickeners for ice cream and salad dressing and emulsifiers for commercial pies and toothpastes.
Choose one answer. a. Green algae b. Red algae c. Brown algae d. Diatoms e. Bacterial fermentation |
c. Brown algae
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Cocoa is fermented by microbes at what stage
Choose one answer. a. a. inside the whole fruit. b. b. after the bean has been extraced but with the pulp. c. c. after the bean has been extract and the pulp removed. d. d. after the beans have been dried. e. e. A + B + E. |
b. b. after the bean has been extraced but with the pulp.
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Alkaline fermentation of foods often employs which of these bacteria?
Choose one answer. a. Listeria b. Bacillus c. Propionibacterium d. Saccharomyces |
b. Bacillus
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Which organism is used in the ethanolic fermentation of breads and alcoholic beverages?
Choose one answer. a. Aspergillus oryzae b. Lactobacillus sp. c. Rhizopus oligosporusTop of Form d. Saccharomyces cervesiae |
d. Saccharomyces cervesiae
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__________ is a process that involves cell-to-cell contact to move the plasmid from a donor cell to a recipient cell.
Choose one answer. a. Transformation b. Transduction c. Pseudogene d. Conjugation e. Transposons |
d. Conjugation
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Supercoiling in bacteria is typically introduced by an enzyme called:
Choose one answer. a. gyrase b. helicase c. ligase d. polymerase e. endonuclease |
a. gyrase
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Peptidyl transferase is present in the __________ ribosomal subunit.
Choose one answer. a. 30S b. 50S c. 5S d. 16S e. 80S |
b. 50S
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Rho functions in:
Choose one answer. a. protein degradation b. protein secretion c. initiation of translation d. termination of transcription e. release of ribosomes from the mRNA |
d. termination of transcription
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How many volts of Bug Power are produced by Geobacter?
Choose at least one answer. a. 6V b. 3V c. 1.5V d. 0.5V e. 0.3V |
e. 0.3V
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