Question

QUESTION 40 Which best describes bacterial quorum sensing? A system that allows bacteria to transfer virulence factors from one bacterium to another by horizontal gene transfer. A system that allows bacteria to sense their own population density by communicating with each other by way of secreted chemical factors and behaving as a population rather than as individual bacteria. A system that enables bacteria to directly injecting bacterial effector molecules into the cytoplasm of the host cell in order to alter its cellular machinery or cellular communication.

Answer 1

Ans) The correct option is "B" i.e A system that allows the bacteria to sense their own population density by communicating with each other by way of secreted chemical factors and behaving as a population rather than an individual bacteria.

(Quorum sensing is used by the bacteria for biofilm formation (For example, Dental plaque), to induce infections by secreting virulence factors etc).