SCIENCE
ENDOCRINE GLANDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a decrease in the concentration of blood glucose
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a decrease in the permeability of cell membranes to glucose
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an increase in the production of glucose from glycogen
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none of these is correct
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Detailed explanation-1: -It comes from alpha cells found in the pancreas and is closely related to insulin-secreting beta cells, making it a crucial component that keeps the body’s blood glucose levels stable. While glucagon keeps blood glucose from dropping too low, insulin is produced to keep blood glucose from rising too high.
Detailed explanation-2: -Insulin: decreases blood glucose through increased expression of GLUT4, increased expression of glycogen synthase, inactivation of phosphorylase kinase (thus decreasing gluconeogenesis), and decreasing the expression of rate-limiting enzymes involved in gluconeogenesis.
Detailed explanation-3: -Insulin acts in the liver to reduce blood glucose concentration by: increasing glucose absorption from the blood by the liver and muscles; converting excess glucose to glycogen which is stored mainly in liver but also muscle; increasing respiration in the liver.
Detailed explanation-4: -Glucagon increases blood sugar levels, whereas insulin decreases blood sugar levels.