muscles

Question 1

name the coenzyme which transports hydrogen ions and electrons to the electron transport chain

Answer 1

NAD

Question 2

What is oxygen debt

Answer 2

when lactate builds up in the muscles causing muscle fatigue

Question 3

How is lactate produced during fermentation

Answer 3

hydrogen from the NADH is transferred to pyruvate to produce lactate. This generates the NAD needed ti maintain ATP production through glycolisis

Question 4

What happens when lactate accumulates

Answer 4

muscle fatigue

Question 5

Describe slow twitch

Answer 5

when muscle fibres contract more slowly but can sustain contractions for longer and become fatigued more slowly and are good for endurance activities

Question 6

Describe slow twitch and aerobic respiration

Answer 6

slow twitch muscle fibres rely on aerobic respiration to generate ATP and have many mitochondria a large blood supply and a high concentration of the oxygen storing protein myglobin

Question 7

What is the major storage fuel of slow twitch muscle fibres

Answer 7

fats

Question 8

Describe fast twitch

Answer 8

fast twitch muscle fibres contract more quickly over short periods and become fatigued mroe quickly and are good for bursts of activity

Question 9

describe fast twitch and glycolisis

Answer 9

fast twitch muscle fibres cab generate ATP through glycolysis only and have fewer mitochondria and a lower blood supply than slow twitch muscle fibres

Question 10

What is the major storage fuel of fast twitch muscle fibres

Answer 10

glycogen