What is the effect of the presence of glucose on the levels of camp?

Glucose is thought to reduce cAMP level by decreasing the phosphorylated form of enzyme IIAGlc, which is proposed to be involved in the activation of adenylate cyclase (3–5). Glucose also is known to reduce the CRP level through the autoregulation of the crp gene (7–10).

we would need to see the picture to answer it

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.