Responding 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 do muscles need more oxygen and glucose during exercise?
Why do muscles need more oxygen and glucose during exercise?
To carry out respiration for energy
Which three changes help the body cope with exercise?
Which three changes help the body cope with exercise?
Heart rate, breathing rate, breath volume
Why does heart rate increase during exercise?
Why does heart rate increase during exercise?
To pump blood around body more quickly
What does a faster heart rate help remove more efficiently?
What does a faster heart rate help remove more efficiently?
Carbon dioxide
When does anaerobic respiration take place?
When does anaerobic respiration take place?
When there's not enough oxygen
What happens to glucose during anaerobic respiration?
What happens to glucose during anaerobic respiration?
It is not fully broken down
What waste product builds up in muscles during anaerobic respiration?
What waste product builds up in muscles during anaerobic respiration?
Lactic acid
What effect does lactic acid buildup have on muscles?
What effect does lactic acid buildup have on muscles?
They become tired and can't contract
What is oxygen debt?
What is oxygen debt?
Extra oxygen needed after exercise
Why do you continue breathing heavily after stopping exercise?
Why do you continue breathing heavily after stopping exercise?
To break down lactic acid buildup
How is heart rate typically measured?
How is heart rate typically measured?
Count pulse for 15 sec, multiply by 4
What device is used to measure breath volume?
What device is used to measure breath volume?
Spirometer