Response to Exercise (OCR GCSE Biology A, Combined (Gateway Science Suite)): Quizzes
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Practise the questions
10 questions from this quiz
During exercise, why does the body need more energy?
During exercise, why does the body need more energy?
For muscles to contract
What needs to be supplied more quickly to cells during exercise?
What needs to be supplied more quickly to cells during exercise?
Oxygen
Which of these increases during exercise to supply more oxygen?
Which of these increases during exercise to supply more oxygen?
Heart rate, breathing rate, and breath volume
When does anaerobic respiration take place during exercise?
When does anaerobic respiration take place during exercise?
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 effect does lactic acid buildup have on muscles?
What effect does lactic acid buildup 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?
Liver
What is lactic acid converted back to in the liver?
What is lactic acid converted back to in the liver?
Glucose
Why does respiration need to occur faster during exercise?
Why does respiration need to occur faster during exercise?
To supply more energy for muscles