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What are some characteristics of glycogen phosphorylase?
"I. It is the rate-limiting enzyme of glycogenolysis" "II. It breaks alpha 1,4 glycosidic bonds" "III. It is activated by epinephrine" "IV. It breaks alpha 1,6 glycosidic bonds"
What else can I help you with?
Phosphorylation of glycogen phosphorylase has what effect on the enzyme?
Activation, conversion from glycogen phosphorylase B to glycogen phosphorylase A
Which of the following statements about glycogen phosphorylase (GP) is incorrect?
AMP is an inhibitor of glycogen phosphorylase.
Why is glycogen phosphorylase alone not sufficient in in degrading glycogen?
Glycogen phosphorylase can not cleave the alpha-1,6-glycosidic bonds at glycogen branch points
Which enzymes are required for glycogen breakdown?
glycogen phosphorylase, glycogen debranching enzyme, phosphoglutomutase
What breaks down glycogen in the body?
The enzyme called glycogen phosphorylase breaks down glycogen in the body.
What is the last step in the sequence of events when cyclic AMP acts as a second messenger?
the last step is ofcourse glycogen breakdown.......before that inactive glycogen phosphorylase-b is activated and phosphorylated to glycogen phosphorylase-a by the help of activated phosphorylase kinase........ ......phosphorylase kinase was activated by activated protien kinase..and activated protien kinase was activated by cyclic amp...........
What is the difference between alpha 1,4 glucosidase and glycogen phosphorylase in terms of their roles in carbohydrate metabolism?
Alpha 1,4 glucosidase helps break down complex carbohydrates into simpler sugars, while glycogen phosphorylase helps break down glycogen into glucose for energy. Essentially, alpha 1,4 glucosidase is involved in the initial breakdown of carbohydrates, while glycogen phosphorylase is involved in breaking down stored glycogen for energy production.
What is the substrate of phosphorylase?
The substrate is Glucose-1-phospate which is broken down by only Phosphorylase and produces Starch as its end product
What does the cleavage of glycogen phosphorylase release?
The cleavage of glycogen phosphorylase releases glucose-1-phosphate by breaking the glycosidic bond within glycogen. This glucose-1-phosphate can then be further processed to yield free glucose for energy production.
How is glycogen broken down in the body?
Glycogen is broken down in the body through a process called glycogenolysis. This process involves the enzyme glycogen phosphorylase breaking down glycogen into glucose molecules, which can then be used for energy by the body.
Can glycogen be converted?
No. Insulin converts glucose into glycogen for storage in the body. Glucagon converts glycogen into glucose. (it's the various cells in the body that do the conversion in either case, insulin and glucagon are hormones that induce the shift in the metabolism.)
What is the main enzyme for breaking down glycogen?
The main enzyme for breaking down glycogen is glycogen phosphorylase. This enzyme catalyzes the phosphorylytic cleavage of glucose residues from the glycogen polymer, releasing glucose-1-phosphate for energy production.
