ATP-PCr #3

Question 1

acetyl-CoA and lactic acid requires which molecule that pyruvate produces

Answer 1

acetyl-CoA with oxygen
lactic acid without oxygen

Question 2

what are ATP-PCr system characteristics?

Answer 2

• PCr contains a high energy phosphate bond.
• resting ATP and PCr in the sarcoplasm provide suffienct energy for 8-12 seconds. (high power, low capacity)

Question 3

what are 3 components of the ATP-PCr systems?

Answer 3

ATP + PCr + Myokinase reaction.

Question 4

1. where is creatine made?
2. what are some important things to know when doing creatine monohydrate supplementation?

Answer 4

1. liver.
2. 95% stored in sk muscle
   - effective ergogenic nutrition supplement
   - increase muscle creatine and PCr.

Question 5

what are 3 natural AA that form creatine?

Answer 5

• arginine
• glycine
• s-adenosyl methionine

Question 6

what are benefits of taking creatine?

Answer 6

• increase sk muscle Cr
• increase hydration status of cells.
• increase of protein synthesis
• increase sport performance )anaerobic, short powerful burst)
• increase training intensity.
  increase muscle mass.

Question 7

what are the possible mechanisms that would be affected by taking creatine?

Answer 7

• increase Cr in diet
• increase in Cr and Per in sk muscle.
• increase flux thru CK reaction (more energy)
• increase PCr resynthesis.
• Increase PCr @ start of next exercise.
• increase muscle performance.

Question 8

if their is an increase of Cr and PCr in sk muscle, what are the mechanisms that are then affected?

Answer 8

• increase pre exercise Per avalibilty
• decrease dependence on glycolysis.
• decrease in lactate acid
• increase in pH
  -delay onset of fatigue.

Question 9

if someones body does not respond to creatine, what things might they notice?

Answer 9

• increase in dietary protein intake.
• increase endogenous stores Cr and PCr.
  decrease FT fibre (fast twitch)