Respiration (AQA GCSE Biology Combined Science): Flashcards
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Practise the cards
10 cards from this deck
Why does the body need more energy during exercise?
Why does the body need more energy during exercise?
For muscles to contract
Three body responses to exercise
Three body responses to exercise
Heart rate↑, breathing rate↑, breath volume↑
Type of respiration when O2 insufficient during exercise
Type of respiration when O2 insufficient during exercise
Anaerobic respiration
Byproduct of anaerobic respiration
Byproduct of anaerobic respiration
Lactic acid
What is oxygen debt?
What is oxygen debt?
Extra O2 needed after exercise to remove lactic acid from cells
What's needed to break down lactic acid
What's needed to break down lactic acid
Oxygen
Effect of lactic acid buildup on muscles
Effect of lactic acid buildup on muscles
Muscles tire and don't contract properly
Where is lactic acid converted back to glucose?
Where is lactic acid converted back to glucose?
Liver
What is lactic acid converted to in the liver?
What is lactic acid converted to in the liver?
Glucose
Why respiration rate increases during exercise
Why respiration rate increases during exercise
To supply more O2 to cells and remove more CO2