Question

explain how epinephrine and norepinephrine affect plasma glucagon and why is this important during exercise?

Answer 1

GLUCAGON: It is the harmone secreted by pancreas cells called Islets of langerhans and increase tge glucose level in blood.

FUNCTIONS OF GLUCAGON:

1. Stimulates liver to breakdown stored glycogen into glucose and release into blood
2. Activates Gluconeogenesis ie, conversion of amino acids into glucose
3. Breaking down stored fat into fatty acids and use it as fuel for cells.

EPINEPHRINE AND NOREPINEPHRINE EFFECTS:

• Epinephrine and norepinephrine are responsible for breakdown of stored glycogen into glucose,as the breaking function is done by Glucagon they increase the level of plasma glucagon and inhibition of production of insulin.

PLASMA GLUCAGON IMPORTANTANCE DURING EXERCISE:

• During Exercise, there is stress on the body and more energy is needed to perform the activity this leads to release of epinephrine and norepinephrine.
• Both Harmones increase the production of plasma glucagon which stimulates the liver in breakdowing the stored glycogen to glucose,it also break fat into fatty acids which are fuel for cells.
• The glucose and fatty acids help in meeting the needs of energy during exercise.