00:01
Okay, so we're going to look at the regulation of glycogen phosphorylase in muscle tissue, and we'll talk about three different events that can affect the rate of glycogen breakdown in muscle tissue.
00:21
So to simply preface this, glycogen phosphorylase a is responsible for the breakdown of glycogen, that'll later become glucose 6 phosphate that goes into glycolysis.
00:41
Now, glycogen phosphorylase itself has two forms.
00:50
The more active glycogen phosphorylase a and the inactive glycogen phosphorylase b.
01:04
Now, we're going to talk about how does one go from inactive to active, and vice versa.
01:16
Well, the addition of phosphorylase kinase and atp, otherwise known as p -k -a with some atp, actually goes ahead and increases the concentration of glycogen phosphorylase a, which will go ahead and increase glycogen breakdown in muscle tissue...