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Yr 12 PE > 02b. Energy Systems - Anaerobic glycolysis > Flashcards

02b. Energy Systems - Anaerobic glycolysis Flashcards

1
Q

What releases the energy for muscular contraction?

A

The high energy bond between the second and third phosphate in ATP breaking apart.

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2
Q

The high energy bond between the second and third phosphate in ATP breaking apart results in what?

A

Muscle contraction

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3
Q

What are carbohydrates stored as in the muscle?

A

glycogen

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4
Q

What are carbohydrates in the blood?

A

glucose

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5
Q

Where is glycogen found?

A

within muscle

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6
Q

Where is glucose found?

A

within the blood

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7
Q

What food fuel is contributing most significantly at sub max intensity?

A

Carbohydrates (CHO)

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8
Q

When do carbohydrates (CHO) contribute most significantly?

A

At sub max intensity

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9
Q

Which energy system has the second highest rate?

A

Anaerobic glycolysis system

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10
Q

What is the intensity of the anaerobic glycolysis system?

A

85-95%MHR

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11
Q

Which energy system is contributing most significantly at intensities 85- 95% MHR?

A

Anaerobic glycolysis system

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12
Q

What is the yield of the anaerobic glycolysis system?

A

low (2mmol)

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13
Q

Which energy system has the second lowest yield?

A

Anaerobic glycolysis system

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14
Q

What is pyruvic acid?

A

a by product of glycolysis

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15
Q

What is the by product of glycolysis?

A

pyruvic acid

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16
Q

What does the accumulation of lactate acid result in?

A

H+ions

17
Q

What causes H+ions?

A

The accumulation of lactic acid

18
Q

How do H+ions cause fatigue?

A

increased acidity therefore decreased ability to use glycogen inhibiting muscle contraction

19
Q

What causes increased acidity therefore decreased ability to use glycogen inhibiting muscle contraction?

A

H+ions

20
Q

What are the three metabolic by products?

A

ADP, Pi, H+ions

21
Q

What is the duration the anaerobic glycolysis system contributes most significantly for

A

Until sufficient oxygen reaches muscles/H+ions inhibit contraction (approx 30 secs)

22
Q

What type of recovery is recommended after an event that heavily relies on the anaerobic glycolysis system?

A

Active

23
Q

Describe an active recovery

A

Doing the same activity for 5mins at a lower itensity

24
Q

Explain how an active recovery increases recovery rate

A

because active recovery keeps blood flow to working muscles then increased oxygen to muscles so increased rate/faster/more rapid breakdown/removal of H+ions.

25
Q

Which letter is most likely to represent the anaerobic glycolysis systems contribution in a 3km run?

A

A

26
Q

Which letter is most likely to represent the anaerobic glycolysis systems contribution in 1min gymnastics beam routine?

A

C

27
Q

Which letter is most likely to represent the anaerobic glycolysis systems contribution in the last 30second sprint of a marathon?

A

A

Yr 12 PE (31 decks)

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