Lecture F Flashcards

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
A

T

17
Q

T/F

Glycogen phosphorylase turned ON when glycogen synthase turned OFF

A

T

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

A

T

24
Q

T/F

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

A

F

25
Q

T/F

Effect of glycogen sparing effect of training is associated with decrease in AMP, ADP and Pi

A

T

26
Q

Muscle glycogen synthesis is

A

Both insulin dependent and independent

27
Q

Muscle glycogen synthesis is insulin dependent when

A

Post exercise feeding ( later )

28
Q

Muscle glycogen synthesis is insulin independent when

A

Immediately post exercise ( early)

29
Q

T/F

Endurance exercise training results in an increased ability to accumulate muscle glycogen after exercise

A

T

30
Q

Major determinant of muscle glycogen accumulation after exercise

A

Amount of glycogen synthase in the I form

31
Q

T/F

Number of GLUT-4 content increases in trained muscle

A

T

32
Q

T/F

Low volume sprint interval and traditional endurance training also increase glycogen storage capacity

A

T

33
Q

High intensity interval training is a time efficient way to increase

A

Skeletal muscle oxidative capacity 0

34
Q

CHO recommendation for athletes

A

6-10 g/kg body weight per day

35
Q

Dietary goals after excerise

A

Provide adequate fluids, electrolytes, energy and CHO to replace muscle glycogen and ensure rapid recovery.

36
Q

CHO intake after exercise

A

1-1.5 g/kg body weight during the first 30 min again every 2 hrs for 4-6 hrs

37
Q

CHO recommendation according to NCAA sport medicine handbook

A

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
Q

Good sources of high quality CHO

A
Whole grains, 
Breads
Pasta 
Whole fruits 
Vegetables