2) (1 pt) For the hormone glucagon: a) What is the purpose of glucagon? b) What

Question

2) (1 pt) For the hormone glucagon: a) What is the purpose of glucagon? b) What are the four ways in which glucagon can help do that? c) In the drawing, one of the steps in how glucagon regulates glycogen synthesis is shown by the arrow showing induction of PKA activity. Complete the drawing for the increases or decreases in activities of the other enzymes using arrows and blockers for activation or inhibition. Also indicate the effects on the concentration of the effector F-2,6-BP Glucagon PFK-1 PK PKA-PFK-2 F-26-BP 7 F-2,6-BPase 458P Phosphorylase kinase F-1,6-BPase Glycogen Glycogen

Explanation / Answer

1. The pancreas releases glucagon in response to low glucose concentration. Glucagon causes the liver to convert stored glycogen into glucose, which is released into the bloodstream.

2. When glucagon is released it can perform the following tasks:

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