Response to Exercise (AQA GCSE Biology): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
Why is more oxygen needed during exercise?
Why is more oxygen needed during exercise?
Muscles need energy to contract faster
Which THREE changes help supply more oxygen during exercise?
Which THREE changes help supply more oxygen during exercise?
Heart rate, breathing rate, breath volume
What happens to heart rate during exercise?
What happens to heart rate during exercise?
It increases
What happens to breathing rate during exercise?
What happens to breathing rate during exercise?
It increases
When does anaerobic respiration take place?
When does anaerobic respiration take place?
When insufficient oxygen is supplied
What byproduct builds up during anaerobic respiration?
What byproduct builds up during anaerobic respiration?
Lactic acid
What is oxygen debt?
What is oxygen debt?
Extra O2 needed to remove lactic acid
What is oxygen needed for after exercise?
What is oxygen needed for after exercise?
To break down lactic acid
What effect does lactic acid have on muscles?
What effect does lactic acid have on muscles?
They tire and don't contract properly
Where is lactic acid transported to from the muscles?
Where is lactic acid transported to from the muscles?
The liver
What is lactic acid converted to in the liver?
What is lactic acid converted to in the liver?
Glucose