Energy Systems in Muscle Cells Flashcards
1
Q
How is Lactate Produced
A
hydrogen from NADH from Glycolysis transferred to pyruvate
2
Q
What happens to NAD when H from NADH combines with pyruvate
A
NAD regenerated to maintain ATP production
3
Q
What happens when lactate accumulates in muscles
A
fatigue
4
Q
What is a shortage of oxygen called
A
oxygen debt
5
Q
When is oxygen debt repaid
A
when exercise is complete and there is sufficient oxygen in the body to convert lactate to pyruvate
6
Q
types of muscle fibres
A
slow twitch
fast twitch
7
Q
Sow twitch fibres
A
contract slowly
Endurance sports
Relies on aerobic respiration
Lots of Mitochondria
Large blood supply
Lots of myoglobin
Fats
8
Q
Fast twitch fibres
A
contract quickly
Good for burst of energy
Generates ATP through GLYCOLYSIS ONLY
few mitochondria
Low blood supply
Glycogen
