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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.
What enzyme regulates glycogenolysis?
Actually, three are the enzymes that intervene during glycogen breakdown (glycogenolysis).First, Glycogen phosphorylase (or simply phosphorylase) that catalyzes glycogen phosphorolysis (bond cleavage by the substitution of a phosphate group) to yield glucose-1-phosphate (G1P) releasing only one glucose residue that is at least five residues from a ramification point.The second enzyme is the Glycogen debranching enzymethat removes glycogen's branches, thereby permiting the glycogen phosphorylase reaction (see above) to go to completion. This enzymes also hydrolyzes alpha(1-6)-linked glucosyl units to yield glucose.Finally, Phosphoglucomutase that converts G1P to G6P which is also formed in the first step of glycolysis through the action of either hexokinase or glucokinase.
Why are both chloroplasts and mitochondria present in phosphorylase enzymes?
Chloroplasts and mitochondria both contain phosphorylase enzymes because these enzymes are involved in energy metabolism processes that occur in both organelles. Phosphorylase enzymes are responsible for catalyzing the breakdown of glycogen into glucose units in the cytoplasm, releasing energy in the form of ATP which is essential for cellular energy production.
How is glycogen broke down?
Glycogen is broken down through a process known as glycogenolysis, which involves the breakdown of glycogen into glucose molecules. This process is mainly controlled by enzymes such as glycogen phosphorylase and glucose-6-phosphatase. The resulting glucose is then available for energy production or storage in the body.
Phosphorylation of glycogen phosphorylase has what effect on the enzyme?
Activation, conversion from glycogen phosphorylase B to glycogen phosphorylase A
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.
What enzyme regulates glycogenolysis?
Actually, three are the enzymes that intervene during glycogen breakdown (glycogenolysis).First, Glycogen phosphorylase (or simply phosphorylase) that catalyzes glycogen phosphorolysis (bond cleavage by the substitution of a phosphate group) to yield glucose-1-phosphate (G1P) releasing only one glucose residue that is at least five residues from a ramification point.The second enzyme is the Glycogen debranching enzymethat removes glycogen's branches, thereby permiting the glycogen phosphorylase reaction (see above) to go to completion. This enzymes also hydrolyzes alpha(1-6)-linked glucosyl units to yield glucose.Finally, Phosphoglucomutase that converts G1P to G6P which is also formed in the first step of glycolysis through the action of either hexokinase or glucokinase.
