Which is the true glucose-level sensor in the cell?
A) insulin
B) phosphorylase a
C) glucagon
D) glycogen synthase
E) protein phosphatase 1

Question

Quizplus · Accepted Answer

Phosphorylase a is the true glucose-level sensor in the cell. It is activated by high levels of glucose-6-phosphate, which indicates that glucose is plentiful and can be stored as glycogen. In contrast, low levels of glucose-6-phosphate signal the need for glucose and the activation of glycogen synthase to build up glycogen stores. Insulin and glucagon are hormones that regulate glucose levels, but they do not directly sense glucose levels in the cell. Protein phosphatase 1 is involved in the regulation of both phosphorylase a and glycogen synthase, but it is not the primary glucose-level sensor.

Which Is the True Glucose-Level Sensor in the Cell