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1) When is the Creatine Phosphate energy system used?
= Phosphocreatine is a substance created by the body in the muscles. It is also stored here however the stores are limited.  Creatine phosphate can supplythe energy needs of a working muscle at a very high rate, but only for about 8–10 seconds. done anaerobically. for example power lifters would use this as their main energy system source

2) What is Creatine Phosphate and what is it used for?
= compound made and stored in the muscles used for the first few seconds of high intensity anaerobic exercise as it can be broken down quickly and used however stores are very limited.
3) What type of exercise/sport is the PC system best used for?
= high intensity lasting between 0-10 seconds. eg hammer throw, javelin, discus, 100 m sprint, weight lifters (1RM)

4) What happens 'chemically' during the us of this system?
= PC = p + c + e
E = ADP + P (i) =  E (coupled reaction)

5) How long does this system last and does it use oxygen?
= anaerobic and 8 - 10 seconds

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1) When is the Creatine Phosphate energy system used? Provide examples.
8-10 secs of ATP stored, for short duration of exercise e.g. 100m sprint

2) What is Creatine Phosphate and what is it used for?

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Since this process does not need oxygen to re-synthesize ATP, it is anaerobic, or oxygen-independent. As the fastest way to re-synthesize ATP, the phosphate system is the predominant energy system used for all-out exercise lasting up to about 10 seconds. A sporting example would be the 100m sprint as you're not needing oxygen as it is a fast and powerful movement.

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Phosphocreatine, also known as creatine phosphate (CP) or PCr (Pcr), is a phosphorylated creatine molecule that serves as a rapidly mobilizable reserve of high-energy phosphates in skeletal muscle and the brain to recycle adenosine tri phosphate; which is the energy currency of the cell.  and is used for the muscles of the body function through the use of ATP, or adenosine triphosphate, to power contractions. When one molecule of ATP is used in the contraction process, it is hydrolyzed to ADP, adenosine diphosphate, and an inorganicphosphate. ... The products of this reaction are ATP and creatine.

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When is the Creatine Phosphate energy system used? Provide examples
Since this process does not need oxygen to resynthesize ATP, it is anaerobic, or oxygen-independent. As the fastest way to resynthesize ATP, the phosphagen system is the predominant energy system used for all-out exercise lasting up to about 10 seconds.

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What happens 'chemically' during the us of this system?

An ATP molecule consists of one adenosine and three (tri) phosphategroups

The breakdown of ATP to release the stored chemical energy within its high energy phosphate bonds is known as ATP hydrolysis (hydrolysis = breakdown with water).

ATP hydrolysis is triggered by the arrival of an action potential (electrical impulse) at the sarcomere (the contractile unit in human muscle) from the motor neuron (neuron/nerve that tells the muscle to contract).

It results in the last phosphate group splitting away from the ATP molecule and releasing energy for muscle contraction

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What is Creatine Phosphate and what is it used for?
All muscle cells have a little ATP within them that they can use immediately – but only enough to last for about 3 seconds! So all muscle cells contain a high-energy compound called creatine phosphate which is broken down to make more ATP quickly.

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Abigail

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What type of exercise/sport is the PC system best used for?
Shot-put, discuss, javelin, golf swinging

# data[].attributes.headline
 all muscle cells contain a high-energy compound called creatine phosphate which is broken down to make more ATP quickly. Creatine phosphate can supply the energy needs of a working muscle at a very high rate, but only for about 8–10 seconds.

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 all muscle cells contain a high-energy compound called creatine phosphate which is broken down to make more ATP quickly. Creatine phosphate can supply the energy needs of a working muscle at a very high rate, but only for about 8–10 seconds.

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Emily

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3) What type of exercise/sport is the PC system best used for?

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3) What type of exercise/sport is the PC system best used for?

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Weight lifting, sprinting, shotput, long jump, and high jump.

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www.ptdirect.com/training-design/anatomy-and.../the-energy-systems-2013-an-overvie...

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Phosphocreatine. The muscles of the body function through the use of ATP, or adenosine triphosphate, to power contractions. 

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Phosphocreatine. The muscles of the body function through the use of ATP, or adenosine triphosphate, to power contractions. 

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Emily

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These ATP stores last only a few seconds after which the breakdown of PC provides energy for another 5-8 seconds of activity. Combined, the ATP-PC system can sustain all-out exercise for up to 10-15 seconds and it is during this time that the potential rate for power output is at its greatest.

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These ATP stores last only a few seconds after which the breakdown of PC provides energy for another 5-8 seconds of activity. Combined, the ATP-PC system can sustain all-out exercise for up to 10-15 seconds and it is during this time that the potential rate for power output is at its greatest.

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Emily

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great use of copying and pasting emily and abigail

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great use of copying and pasting emily and abigail

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How long does this system last and does it use oxygen?The lactic acid system of energy production is used when oxygen is not available and when stores of creatine phosphate run out (after approximately 10 seconds).

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How long does this system last and does it use oxygen?

If this energy system is 'fully stocked' it will provide energy for maximal intensity, short duration exercise for between10-15 seconds before it fatigues.

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First, creatine phosphate is consumed within a few seconds. Second, the lactate produced would cause acidosis. Thus, alternative fuel sources are needed. The complete oxidation of muscle glycogen to CO2 substantially increases the energy yield, but this aerobic process is a good deal slower than anaerobic glycolysis.

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First, creatine phosphate is consumed within a few seconds. Second, the lactate produced would cause acidosis. Thus, alternative fuel sources are needed. The complete oxidation of muscle glycogen to CO2 substantially increases the energy yield, but this aerobic process is a good deal slower than anaerobic glycolysis.

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Abigail