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Pe - Section A > Energy Systems > Flashcards

Energy Systems Flashcards

1
Q

What is the ATP-PC System

A

It is an anaerobic reaction to re-synthesise ATP

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2
Q

What is ATP

A

Adenosine Triphosphate

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3
Q

What fuel does the ATP-PC System use

A

Creatine phosphate (PC)

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4
Q

How long does the ATP-PC System last for

A

3-10 seconds

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5
Q

How long is the recovery time for the ATP-PC systems

A

3 minutes

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6
Q

What sports is the ATP-PC System used in

A

Shot put, javelin

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7
Q

Describe the process of the ATP-PC System

A

1) ATP requires re-synthesising
2) PC is present in the muscle cell
3) PC is broken down to provide the energy required to re-synthesise.
4) 1 PC molecule produces 1 new ATP molecule

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8
Q

What are the advantages of the ATP-PC System

A

1) PC is already in muscles, so it’s readily available- it doesn’t need to be be fetched from other organs
2) No O² is required- body doesn’t need to increase breathing rate
3) Energy production is quick as it’s a simple reaction
4) No negative by-products

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9
Q

What is the lactic acid system

A

Is an anaerobic glycolysis reaction to re-synthesise ATP

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10
Q

What fuel does the Lactic acid system use

A

Glycogen

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11
Q

How long does the Lactic acid system last for

A

10 seconds to 2 minutes

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12
Q

How long is the recovery time of the Lactic acid system

A

1 to 2 hours

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13
Q

What sports is the lactic acid system used in

A

Tennis, badminton

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14
Q

What is glucose

A

The sugar in our blood stream that our body uses for energy

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15
Q

What is glycogen

A

Is a stored form of energy

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16
Q

Describe the process of the lactic acid system

A

1) ATP needs re-synthesising
2) Glycogen is present in muscle cell and liver. Glucose is present in blood stream
3) Glycogen is broken down to provide the energy required to re-synthesise ATP. Enzymes speed up the process
4) Pyruvate acid is produced as a byproduct of glycolysis. Since no O² is available to make use of the pyruvate acid, it’s converted to lactic acid
5) 1 glycogen molecule produces 2 new ATP molecules

17
Q

What are the advantages of the Lactic acid system

A

1) no o² required so energy produced quickly
2) Produces a greater yield of ATP
3) Lasts longer than the ATP-PC System

18
Q

What is the aerobic energy system

A

An aerobic glycolysis and lipolysis reaction

19
Q

What fuel does the aerobic system use

A

Glycogen and fat

20
Q

How long does the aerobic system last for

A

Longer than 3 mins

21
Q

What is the recovery time for the aerobic system

A

24-48 hours

22
Q

What sports use the aerobic system

A

Long distance and endurance events

23
Q

What is the process of the aerobic system

A

1) Needs re-synthesising
2) Glycogen is present in muscle cell. Glucose is in blood stream
3) Glucose is broken down to provide energy
4) Krebs cycle
5) The electron transport chain

24
Q

What is the Krebs cycle

A
    • It occurs in the mitochondria
    • Pyruvic acid it converted to Acetyl CoA
    • Acetyl CoA combines with oxaloacectic acid to make citric acid
    • 2 ATPs are produced
    • By-products are CO2 and hydrogen
    • Hydrogen atoms enter the Electron Transport Chain
25
Q

What is the Electron Transport Chain

A
    • Occurs in crista
    • Hydrogen is split into ions and electrons
    • Hydrogen electrons are passed down the chain
    • The hydrogen combines with O2 to release enough energy to reform 34 ATP
    • By-products are CO2 and H2O
26
Q

What are the benefits of aerobic system

A
    • Can produce energy to last a long time due to large store of glycogen
    • We can use fat as a fuel
    • High yield.of ATP produced- 38 per glycogen molecule
    • No harmful waste products
27
Q

What are the disadvantages of the aerobic system

A

Slow to get going as there’s oxygen debt to repay

Pe - Section A (11 decks)

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