Flashcards in Lecture F Deck (38):
1
Glycogenin
Protein around which glucosyl units attach
2
Largest glycogen particle
5500 glucosyl units
3
T/F
FA are more reduced than glycogen
T
4
2 major Sites of storage
Liver
Skeletal muscle
5
What plays key role in glycogenolysis
Inorganic phosphate
6
In glycogenolysis glucose 1-p converts to
G-6-p
7
Following a meal, glycogen stored in
Booth liver and muscle
8
Following exercise, glycogen preferentially stored in
Muscle
9
T/F
Presence of glycogen in muscle requires less water than the presence of glucose
T
10
T/F
Branching reduces osmotic pressure
T
11
2 forms of glycogen
Proglycogen
Macroglycogen
12
Proglycogen mobilized during
Anaerobic exercise
13
macroglycogen mobilized during
Aerobic / endurance exercise
14
Glycogen synthesis most rapid in
1st hr after exercise
15
Which one replenish sooner after exercise or depletion
Proglycogen or macroglycogen
Proglycogen
16
T/F
All enzymes (north for synthesis and breakdown ) found within the glycogen molecule
T
17
T/F
Glycogen phosphorylase turned ON when glycogen synthase turned OFF
T
18
Phosphorylation activates
Glycogen phosphorylase
19
Phosphorylation inhibits
Glycogen synthase
20
Phosphatase activates
Glycogen synthase
21
Phosphatase inhibits
Glycogen phosphorylase
22
As exercise progresses, glycogen stores
Decreases and its use is reduced
23
T/F
Training can delay decrease in glycogen store
T
24
T/F
Effect of glycogen sparing effect of training is due to changes in activation or activity of glycogen phosphorylase
F
25
T/F
Effect of glycogen sparing effect of training is associated with decrease in AMP, ADP and Pi
T
26
Muscle glycogen synthesis is
Both insulin dependent and independent
27
Muscle glycogen synthesis is insulin dependent when
Post exercise feeding ( later )
28
Muscle glycogen synthesis is insulin independent when
Immediately post exercise ( early)
29
T/F
Endurance exercise training results in an increased ability to accumulate muscle glycogen after exercise
T
30
Major determinant of muscle glycogen accumulation after exercise
Amount of glycogen synthase in the I form
31
T/F
Number of GLUT-4 content increases in trained muscle
T
32
T/F
Low volume sprint interval and traditional endurance training also increase glycogen storage capacity
T
33
High intensity interval training is a time efficient way to increase
Skeletal muscle oxidative capacity 0
34
CHO recommendation for athletes
6-10 g/kg body weight per day
35
Dietary goals after excerise
Provide adequate fluids, electrolytes, energy and CHO to replace muscle glycogen and ensure rapid recovery.
36
CHO intake after exercise
1-1.5 g/kg body weight during the first 30 min again every 2 hrs for 4-6 hrs
37
CHO recommendation according to NCAA sport medicine handbook
1-1.2 gr/kg of body weight
Should be consumer immediately
following training sessions of more than 90 min or high intensity shorter duration
38