Which of the following statement is NOT true of quorum sensing? • Luciferase is a class of enzymes which produce bioluminescence • Quorum sensing occurs at a certain concentration of the secreted autoinducer in the medium • At high concentration of autoinducer in the culture medium diffuses back into the Aliivibrio fisheri cell • The LuxR-auto inducer complex activates the transcription of luciferase • Induction of quorum sensing requires the degradation of autoinducers inside of the Allivibrio fisheri
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Step 1: Quorum sensing is a process where bacteria communicate and coordinate their behavior based on the population density through the secretion and detection of signaling molecules called autoinducers. Show more…
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Which of the following statements about quorum sensing is false? a. Autoinducer must bind to receptor to turn on transcription of genes responsible for the production of more autoinducer. b. The receptor stays in the bacterial cell, but the autoinducer diffuses out. c. Autoinducer can only act on a different cell: it cannot act on the cell in which it is made. d. Autoinducer turns on genes that enable the bacteria to form a biofilm.
Which statement about quorum sensing is TRUE? Select the best available answer. Group of answer choices: It measures the size of individual cells in a population. It depends upon the accumulation of signaling molecules called autoinducers. It will activate light production in all quorum-sensing species. It is a mechanism used by bacteria to promote group behaviors.
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