BCH 361 EXAM 4 QUESTIONS WITH VERIFIED
ANSWERS
Where does glycogen store glucose? - Answers - Liver and muscle
What is glycogen? - Answers - Highly branched polymer of glucose
What does liver do with glycogen? - Answers - Breaks down glycogen and releases
glucose to the blood to provide energy for the brain and red blood cells
What does muscle store glycogen for? - Answers - Energy for muscle contraction
Subunit and bonds of glycogen - Answers - -alpha glucose
-alpha 1,4 and 1,6 bonds
Subunit and bonds of starch - Answers - Amylose
-alpha glucose
-alpha 1,4
Amylopectin
-alpha glucose
-alpha 1,4 and 1,6
Subunit and bonds of cellulose - Answers - -beta glucose
-beta 1,4
Glycogen phosphorylase - Answers - Degrades glycogen from the non-reducing ends to
form glucose 1-phosphate
Phosphoglucomutase - Answers - Converts glucose-1-phosphate to glucose-6-
phosphate with the use of glucose 1,6-bisphosphate
Debranching enzyme - Answers - Transferase shifts a small oligosaccharide away from
the branching point and alpha 1,6-glucosidase removes a alpha 1,6 linked glucose
Phosphorylase a - Answers - More active than phosphorylase b
R state - Answers - More active than T state
Muscle phosphorylase - Answers - Regulated by intracellular energy charge. In muscle,
default form is the b form, in the T state (less active). The T state is stabilized by ATP
and glucose-6-phosphate.
ANSWERS
Where does glycogen store glucose? - Answers - Liver and muscle
What is glycogen? - Answers - Highly branched polymer of glucose
What does liver do with glycogen? - Answers - Breaks down glycogen and releases
glucose to the blood to provide energy for the brain and red blood cells
What does muscle store glycogen for? - Answers - Energy for muscle contraction
Subunit and bonds of glycogen - Answers - -alpha glucose
-alpha 1,4 and 1,6 bonds
Subunit and bonds of starch - Answers - Amylose
-alpha glucose
-alpha 1,4
Amylopectin
-alpha glucose
-alpha 1,4 and 1,6
Subunit and bonds of cellulose - Answers - -beta glucose
-beta 1,4
Glycogen phosphorylase - Answers - Degrades glycogen from the non-reducing ends to
form glucose 1-phosphate
Phosphoglucomutase - Answers - Converts glucose-1-phosphate to glucose-6-
phosphate with the use of glucose 1,6-bisphosphate
Debranching enzyme - Answers - Transferase shifts a small oligosaccharide away from
the branching point and alpha 1,6-glucosidase removes a alpha 1,6 linked glucose
Phosphorylase a - Answers - More active than phosphorylase b
R state - Answers - More active than T state
Muscle phosphorylase - Answers - Regulated by intracellular energy charge. In muscle,
default form is the b form, in the T state (less active). The T state is stabilized by ATP
and glucose-6-phosphate.
