glucose and lac operon

If glucose is glucose is available then the lac operon should be turned _____

OFF

When glucose is low/absent & not available for metabolism cellular levels pf cAMP __________

Increases

Glucose levks are linked to cellular levels of a molecule called :

Cyclic AMP cAMP

The rate if transcription of the lac operon if _______________.

High cellular cAMP levels increase

cAMP levels do _____ affect repressor proteins activity

NOT

When goucose is absent cAMP ______ transcription

Increases

How does extracellular glucose inhibit transcription of the lac operon?

By reducing the levels of intracellular cAMP

Cyclic AMP Receptor Protein (CRP) is an ______ protein of the lac operon when bound to cAMP

Activator

Low Glucose levels = _______ cellular cAMP levels which binds to & activates CRP

High

_________ : binds to a region of DNA upstream of the lac promoter & recruits RNA polymerase

Active CRP

Low Glucose = __________ = Active CRP= Increased Rate of Lac Operon Transcription

High cAmp