Responding to exercise (AQA GCSE Biology Combined Science): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Which three changes occur in your body during exercise?
Which three changes occur in your body during exercise?
Heart rate, breathing rate, breath volume
Why does your heart rate increase during exercise?
Why does your heart rate increase during exercise?
To pump blood faster, delivering oxygen and glucose
What do muscle cells need more of during exercise compared to rest?
What do muscle cells need more of during exercise compared to rest?
Oxygen and glucose
When does oxygen debt occur?
When does oxygen debt occur?
When muscles can't get enough oxygen during intense exercise
What builds up in muscles during anaerobic respiration?
What builds up in muscles during anaerobic respiration?
Lactic acid
Why do you continue breathing heavily after exercise stops?
Why do you continue breathing heavily after exercise stops?
To 'pay back' oxygen debt
To calculate heart rate per minute, count pulse for 15 seconds then do what?
To calculate heart rate per minute, count pulse for 15 seconds then do what?
Multiply by 4
What device is used to measure breath volume?
What device is used to measure breath volume?
Spirometer
What waste product do muscles produce more of during exercise?
What waste product do muscles produce more of during exercise?
Carbon dioxide
What happens to muscles when lactic acid builds up?
What happens to muscles when lactic acid builds up?
They become tired and stop working well