Answer
418.2k+ views
Hint:Glycogenesis is the conversion and storing of extra amount of glucose into glycogen. glycogenolysis is controlled by enzymes glycogen phosphorylase, debranching enzyme, phosphoglucomutase. Regulation of enzymes is accomplished by three mechanisms, they are allosteric regulation, hormonal regulation, and the influence of calcium.
Complete answer:
In the human body, glycogen is a branch of glucose stored mainly in the liver and skeletal muscles that provides glucose to blood stream during fasting periods and to muscle cells during muscle contraction. Glycogenolysis is the conversion of glycogen into glucose back when glucose level in blood falls down is known as glycogenolysis. This derivation of glucose is then converted to glucose -6- phosphate, an intermediate in glycolysis. Glycogen is food stored in the liver. Gluconeogenesis is the time of need, the liver converts non carbohydrate compounds into glucose. Carbohydrate compounds are amino acids, fatty acids. This type of conversion is known as gluconeogenesis. This is the neo formative process of glucose. The glycogenolysis also takes place in the skeletal muscles during muscular exercise.
Thus, the correct answer is option (A).
Note:Allosteric regulation is enhanced for low glucose, low energy level. In this regulation, glycogen breakdown inhibits high glucose -6- phosphate, ATP, free glucose in the liver. Hormonal regulation is enhanced low blood glucose level (fasting), these releases glucagon and epinephrine.
Complete answer:
In the human body, glycogen is a branch of glucose stored mainly in the liver and skeletal muscles that provides glucose to blood stream during fasting periods and to muscle cells during muscle contraction. Glycogenolysis is the conversion of glycogen into glucose back when glucose level in blood falls down is known as glycogenolysis. This derivation of glucose is then converted to glucose -6- phosphate, an intermediate in glycolysis. Glycogen is food stored in the liver. Gluconeogenesis is the time of need, the liver converts non carbohydrate compounds into glucose. Carbohydrate compounds are amino acids, fatty acids. This type of conversion is known as gluconeogenesis. This is the neo formative process of glucose. The glycogenolysis also takes place in the skeletal muscles during muscular exercise.
Thus, the correct answer is option (A).
Note:Allosteric regulation is enhanced for low glucose, low energy level. In this regulation, glycogen breakdown inhibits high glucose -6- phosphate, ATP, free glucose in the liver. Hormonal regulation is enhanced low blood glucose level (fasting), these releases glucagon and epinephrine.
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