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Bacterial signaling that depends on the population density of bacteria in the environment is given a specific name. What is that name?
AYeast mating factor signaling
BParacrine cell signaling
CBacterial quorum sensing
DAutocrine cell signaling
Answer & Solution
Correct answer: C. Bacterial quorum sensing
1. Bacterial signaling depends on the population density of bacteria present in the environment.
2. Because cell density is the determining factor, this bacterial signaling was named quorum sensing.
3. Quorum sensing uses secreted molecules called autoinducers to communicate with other bacteria of the same kind.
4. Mating factor signaling instead describes communication in yeast, and paracrine and autocrine signaling describe categories used in multicellular organisms.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 9 "Cell Communication", section Signaling in Bacteria_
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