BIOLOGICAL BASES OF BEHAVIOR
THE NERVOUS AND ENDOCRINE SYSTEMS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
the liver to control blood sugar levels
|
|
|
a decrease in the permeability of cell membranes to glucose
|
|
|
an increase in the production of glucose from glycogen
|
|
|
a release of adrenaline into the body
|
Detailed explanation-1: -Insulin also signals the liver to store blood sugar for later use. Blood sugar enters cells, and levels in the bloodstream decrease, signaling insulin to decrease too. Lower insulin levels alert the liver to release stored blood sugar so energy is always available, even if you haven’t eaten for a while.
Detailed explanation-2: -“After a meal, insulin tells the liver to package and secrete excess nutrients into triglyceride-rich lipid particles into the blood for use by the rest of the body.”
Detailed explanation-3: -During a meal, insulin stimulates glucose storage by the liver as glycogen. The insulin released from the liver acts on adipose and muscle tissue to stimulate glucose uptake.
Detailed explanation-4: -Insulin acts directly by binding to hepatic insulin receptors and thereby activating insulin signaling pathways in the liver. These effects have been demonstrated in various models.
Detailed explanation-5: -Blood glucose levels, therefore, are carefully maintained. The liver plays a central role in this process by balancing the uptake and storage of glucose via glycogenesis and the release of glucose via glycogenolysis and gluconeogenesis.