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The graph shows the percentage of slow and fast twitch muscle fibres present in athletes who trained for events of different distances - Scottish Highers Human Biology - Question 11 - 2018
Question 11
The graph shows the percentage of slow and fast twitch muscle fibres present in athletes who trained for events of different distances. Key slow twitch fast twitch ... show full transcript
Worked Solution & Example Answer:The graph shows the percentage of slow and fast twitch muscle fibres present in athletes who trained for events of different distances - Scottish Highers Human Biology - Question 11 - 2018
Step 1
A) Athletes who trained for the 100 m event have 5 times more fast twitch muscle fibres than slow twitch muscle fibres.
Answer
This statement is incorrect. The graph indicates that athletes training for the 100 m event have a higher percentage of fast twitch fibres, but not necessarily 5 times more than slow twitch fibres.
Step 2
B) Athletes who trained for the 10,000 m event have 4 times more slow twitch muscle fibres than fast twitch muscle fibres.
Answer
This statement is also incorrect. The graph shows that while athletes training for longer distances possess a higher percentage of slow twitch fibres, it does not imply that they have 4 times more than fast twitch fibres.
Step 3
C) Athletes who trained for the 800 m event have twice as many slow twitch muscle fibres as athletes in the 1500 m event.
Answer
This statement cannot be validated directly from the graph as it does not provide a clear comparative percentage ratio between athletes training for the 800 m and 1500 m events.
Step 4
D) Athletes who trained for the 100 m event have twice as many fast twitch muscle fibres as athletes in the 800 m event.
Answer
This statement is correct. The graph displays a higher percentage of fast twitch muscle fibres in the 100 m event relative to the 800 m event, suggesting that athletes in the 100 m event have twice as many fast twitch fibres.