Please also include the explaination of why the option is ri

Please also include the explaination of why the option is right. (match the following)

Quorum sensing____ 1 Sense the presence of nitrate in the environment

Use of a global regulatory protein____ 2 Move towards high concentrations of glucose

Methyl-accepting chemotaxis protein___ 3 Production of a light emitting enzyme that is energetically expensive and only

functional at very high local concentrations

Sensor-kinase protein___ 4 Ensure oxygen is respired first when NO3- and O2 are both present

Enzyme repression___ 5 Biosynthesis of an essential vitamin

Enzyme induction____ 6 Block expression of a suite of genes that are not in the same operon

Small RNA___ 7 Catabolize a carbohydrate that is often not present in the environment.

Solution

Quorum sensing____ 3 Production of a light emitting enzyme that is energetically expensive and only functional at very high local concentrations.(In Aliivibrio fischeri, a bioluminescent bacterium that lives as a mutualistic symbiont in the photophore (or light-producing organ) of the Hawaiian bobtail squid.

When A. fischeri cells are free-living the autoinducer is at low concentration, the cells do not luminesce but when they are highly concentrated in the photophore (about 10¹¹ cells/ml), transcription of luciferase is induced, leading to bioluminescence.)

Use of a global regulatory protein____5 Biosynthesis of an essential vitamin( a global regulator protein regulates the biosynthesis of an essential meatabolite and, as well as their derivatives)

Sensor-kinase protein___1 Sense the presence of nitrate in the environment

Enzyme repression___ 4 Ensure oxygen is respired first when NO3- and O2 are both present

Enzyme induction____  7 Catabolize a carbohydrate that is often not present in the environment.

Small RNA___ 6 Block expression of a suite of genes that are not in the same operon

Methyl-accepting chemotaxis protein___ 2 Move towards high concentrations of glucose (Methyl-accepting chemotaxis protein (MCP) is a transmembrane sensor protein of bacteria which allows bacteria to detect concentrations of molecules in the extracellular matrix so that the bacteria may smooth swim or tumble accordingly. If the bacteria detects rising levels of attractants (nutrients) or declining levels of repellents (toxins), the bacteria will continue swimming towards it, If the bacteria detects declining levels of attractants or rising levels of repellents, the bacteria will tumble and re-orient itself in a new direction thus may swim towards nutrients and away from toxins )