Anaerobic energy systems (year 2) Flashcards

1
Q

what are the metabolic pathways?

A

1) ATP-PC system
2) Glycolysis
3) Krebs Cycle
4) Electron Transport Chain

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2
Q

ATP-PC system

A

The body does not store enough ATP for exercise

  • The ATP-PC system replenishes ATP rapidly!
  • Creatinekinase reaction to maintain the concentration of ATP.
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3
Q

Glycolysis, what is it?

A

Energy investment stage (-2 ATP)

•Energy generation stage (+4 ATP)

increase in H in pyruvate leads to lactate (increases acidity)

breakdown of glucose/glycogen (6 carbons)

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4
Q

what are the start and end material of glycolysis?

A

Start: Glucose, NAD+

End: 2x pyruvate
2x ATP
2x NADH

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5
Q

Fast vs slow glycolysis:

A
  • In slow glycolysis, pyruvate was produced as an end product and entered the mitochondria
  • In fast glycolysis, NADH production exceeds the cell’s capacity to shuttle away;
  • Lactate dehydrogenase (LDH) permits continuation of glycolysis by accepting H+
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6
Q

what happens to power after certain amount of time?

A

power reduces

No PC stores

increase in H leads to acidity and fatigue

no anaerobic stores.

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