Respiration (AQA GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
Why is more energy needed during exercise?
Why is more energy needed during exercise?
For muscles to contract
What needs to be supplied more to cells during exercise?
What needs to be supplied more to cells during exercise?
Oxygen
Which of these increases during exercise?
Which of these increases during exercise?
Heart rate
What happens to breathing during exercise?
What happens to breathing during exercise?
Rate and volume both increase
When does anaerobic respiration take place?
When does anaerobic respiration take place?
When not enough oxygen is supplied
What is a byproduct of anaerobic respiration?
What is a byproduct of anaerobic respiration?
Lactic acid
What is oxygen debt?
What is oxygen debt?
Extra O2 needed to remove lactic acid
What happens to muscles when lactic acid builds up?
What happens to muscles when lactic acid builds up?
They tire and don't contract properly
Where is lactic acid transported to by the blood?
Where is lactic acid transported to by the blood?
Liver
What is lactic acid converted to in the liver?
What is lactic acid converted to in the liver?
Glucose