2. In muscle tissue, the rate of conversion of glycogen to glucose 6-phosphate is determined by the ratio of phosphorylase a (active) to phosphorylase b (less active). Determine what happens to the rate of glycogen breakdown if a muscle preparation containing glycogen phosphorylase is treated with (a) phosphorylase kinase and ATP; (b) PP1; (c) epinephrine. 3. Between your evening meal and breakfast, your blood glucose drops and your liver becomes a net producer rather than consumer of glucose. Describe the hormonal basis for this switch, and explain how the hormonal change triggers glucose production by the liver.

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
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2. In muscle tissue, the rate of conversion of glycogen to glucose 6-phosphate is determined by
the ratio of phosphorylase a (active) to phosphorylase b (less active). Determine what happens to
the rate of glycogen breakdown if a muscle preparation containing glycogen phosphorylase is
treated with (a) phosphorylase kinase and ATP; (b) PP1; (c) epinephrine.
3. Between your evening meal and breakfast, your blood glucose drops and your liver becomes a
net producer rather than consumer of glucose. Describe the hormonal basis for this switch, and
explain how the hormonal change triggers glucose production by the liver.
Transcribed Image Text:2. In muscle tissue, the rate of conversion of glycogen to glucose 6-phosphate is determined by the ratio of phosphorylase a (active) to phosphorylase b (less active). Determine what happens to the rate of glycogen breakdown if a muscle preparation containing glycogen phosphorylase is treated with (a) phosphorylase kinase and ATP; (b) PP1; (c) epinephrine. 3. Between your evening meal and breakfast, your blood glucose drops and your liver becomes a net producer rather than consumer of glucose. Describe the hormonal basis for this switch, and explain how the hormonal change triggers glucose production by the liver.
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