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Flashcards in Glycogen Deck (8):
1

glycogen

-starch like polymer
-short term fix for a few hours of hypoglycemia

2

when during the day is liver glycogen the highest

-in the evening before bed

3

glycogen is the major sources of glucose until...

about 16 hours of starvation

4

linkages of glycogen

-alpha 1,4 between adjacent glucose molecules
-alpha 1,6 at the branch site

5

why make glycogen?

-glucose transport is facilitated, so if you had a high concentration it would leak out
-high glucose would cause a major osmotic problem
-high glucose would glycate proteins

6

where is glycogen found

-100g in the liver
-400g in the muscle

7

glycogen synthase
-what does it do and why is it important?

-elongates the chain by one glucose molecule at a time
-does this by the 4' OH of a glucose at the end of the chain
-this is the limiting, regulated step (glucose 6 P plus a covalent modification)

8

branching enzyme

terminal segment of growing chain is transerred to form a branch link to a different chain