NEET BIOLOGY

Detailed explanation-1: -Bacteria communicate with one another-not with words but with chemicals. Bacteria release these chemical molecules (called autoinducers) into their environment and then they use the buildup of these signaling molecules to take a census of their cell numbers.

Detailed explanation-2: -Bacterial communication relies on versatile chemical signaling molecules called autoinducers, which regulate bacterial gene expression in a process known as quorum sensing. Like languages between humans, these signals vary between species.

Detailed explanation-3: -Autoinducers allow bacteria to communicate both within and between different species. This communication alters gene expression and allows bacteria to mount coordinated responses to their environments, in a manner that is comparable to behavior and signaling in higher organisms.

Detailed explanation-4: -Quorum sensing bacteria produce and release chemical signal molecules called autoinducers that increase in concentration as a function of cell density. The detection of a minimal threshold stimulatory concentration of an autoinducer leads to an alteration in gene expression.

Detailed explanation-5: -Autoinducers are signaling molecules secreted by bacteria to communicate with other bacteria of the same kind. The secreted autoinducers can be small, hydrophobic molecules such as acyl-homoserine lactone, (AHL) or larger peptide-based molecules; each type of molecule has a different mode of action.