In the regulatory system that controls the lac operon, which molecule directly reflects the level of glucose in the cell?

Question

Quizplus · Accepted Answer

The molecule that directly reflects the level of glucose in the cell is cAMP, which is produced in response to low glucose levels. When there is low glucose, cAMP levels increase, which then binds to CAP to allow for transcription of the lac operon to occur. When there is high glucose, cAMP levels decrease, which hinders the ability of CAP to bind to the promoter region of the lac operon, resulting in decreased transcription.

In the Regulatory System That Controls the Lac Operon, Which