M. Pharmacy Quiz-9

What is the primary function of insulin in the body?

To regulate body temperature

To break down glucose in the bloodstream

To facilitate the uptake of glucose by cells

To stimulate the production of glucagon

Which of the following is a step in the mechanism of action of insulin?

Binding to glucagon receptors

Activating glycogen synthase

Inhibiting protein kinase A

Stimulating lipolysis

What happens when insulin binds to its receptor on the surface of a cell?

The receptor is internalized and degraded

The receptor activates a signaling cascade

The receptor stimulates glucagon release

The receptor inhibits glucose uptake

What is the role of PI3K in insulin signaling?

To break down glycogen

To stimulate glucagon release

To activate protein kinase B (Akt)

To inhibit glucose uptake

Which of the following is a result of insulin's action on glucose metabolism?

Increased glucose production in the liver

Decreased glucose uptake in skeletal muscle

Increased glycogen synthesis in the liver

Decreased glucose storage in adipose tissue

M. Pharmacy Quiz-9

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