Flashcards in Glycogen Deck (8):
-starch like polymer
-short term fix for a few hours of hypoglycemia
when during the day is liver glycogen the highest
-in the evening before bed
glycogen is the major sources of glucose until...
about 16 hours of starvation
linkages of glycogen
-alpha 1,4 between adjacent glucose molecules
-alpha 1,6 at the branch site
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
where is glycogen found
-100g in the liver
-400g in the muscle
-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)