All of the following typically occur in the presence of high glucose and high lactose concentrations EXCEPT
A) enzyme II glucose is unphosphorylated.
B) cAMP concentrations are low.
C) C-reactive protein levels in the cell are low.
D) inhibition of LacY activity.
E) lactose is kept out of the cell.

Question

Quizplus · Accepted Answer

High glucose and high lactose concentrations typically lead to low levels of cAMP, unphosphorylated enzyme II glucose, and inhibition of LacY activity. However, this does not affect levels of C-reactive protein in the cell. In fact, C-reactive protein is not involved in glucose or lactose metabolism, but rather is an acute-phase protein that is used as a marker for inflammation and infection. As such, it is not affected by changes in glucose or lactose concentrations. Additionally, high glucose and lactose concentrations would typically lead to increased expression of lactose permease (LacY), which is responsible for bringing lactose into the cell for metabolism. Therefore, lactose would not be kept out of the cell in the presence of high glucose and lactose concentrations.

All of the Following Typically Occur in the Presence of High