Lecture F Flashcards Preview

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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

Good sources of high quality CHO

Whole grains,
Breads
Pasta
Whole fruits
Vegetables