Lecture F Flashcards

(38 cards)

1
Q

Glycogenin

A

Protein around which glucosyl units attach

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2
Q

Largest glycogen particle

A

5500 glucosyl units

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3
Q

T/F

FA are more reduced than glycogen

A

T

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4
Q

2 major Sites of storage

A

Liver

Skeletal muscle

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5
Q

What plays key role in glycogenolysis

A

Inorganic phosphate

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6
Q

In glycogenolysis glucose 1-p converts to

A

G-6-p

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7
Q

Following a meal, glycogen stored in

A

Booth liver and muscle

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8
Q

Following exercise, glycogen preferentially stored in

A

Muscle

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9
Q

T/F

Presence of glycogen in muscle requires less water than the presence of glucose

A

T

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10
Q

T/F

Branching reduces osmotic pressure

A

T

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11
Q

2 forms of glycogen

A

Proglycogen

Macroglycogen

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12
Q

Proglycogen mobilized during

A

Anaerobic exercise

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13
Q

macroglycogen mobilized during

A

Aerobic / endurance exercise

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14
Q

Glycogen synthesis most rapid in

A

1st hr after exercise

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15
Q

Which one replenish sooner after exercise or depletion

Proglycogen or macroglycogen

A

Proglycogen

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16
Q
T/F 
All enzymes (north for synthesis and breakdown ) found within the glycogen molecule
17
Q

T/F

Glycogen phosphorylase turned ON when glycogen synthase turned OFF

18
Q

Phosphorylation activates

A

Glycogen phosphorylase

19
Q

Phosphorylation inhibits

A

Glycogen synthase

20
Q

Phosphatase activates

A

Glycogen synthase

21
Q

Phosphatase inhibits

A

Glycogen phosphorylase

22
Q

As exercise progresses, glycogen stores

A

Decreases and its use is reduced

23
Q

T/F

Training can delay decrease in glycogen store

24
Q

T/F

Effect of glycogen sparing effect of training is due to changes in activation or activity of glycogen phosphorylase

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
Good sources of high quality CHO
``` Whole grains, Breads Pasta Whole fruits Vegetables ```