AP BIOLOGY

ANIMAL PHYSIOLOGY

CHEMICAL SIGNALS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Bacteria use quorum sensing when they form biofilms. This type of signaling causes
A
aggregation of bacteria
B
rapid growth of bacteria
C
attraction of parasites
D
initiation of bacterial reproduction
Explanation: 

Detailed explanation-1: -Quorum sensing (QS) is a bacterial cell–cell communication process that involves the production, detection, and response to extracellular signaling molecules called autoinducers (AIs).

Detailed explanation-2: -During the process of biofilm formation microorganisms have the ability to communicate with each other through quorum sensing. Quorum sensing regulates the metabolic activity of planktonic cells, and it can induce microbial biofilm formation and increased virulence.

Detailed explanation-3: -Quorum sensing is a cell-to-cell communication process that enables bacteria to collectively modify behaviour in response to changes in the cell density and species composition of the surrounding microbial community.

Detailed explanation-4: -Quorum sensing involves autocrine cells determining their population density due to the cells engaging in neighbor-communication without self-communication.

There is 1 question to complete.