Which gas do we inhale that is used by cells to oxidise food?
AOxygen
BArgon
CNeon
DHelium
Answer & Solution
Correct answer: A. Oxygen
Oxygen is the most common oxidising agent that cells use in respiration to burn their food.
Keep practising Respiration in organisms
Browse all Respiration in organisms questions for Olympiad (Class 7), or explore more Science topics.
Related questions
A bacterial colony in waste water cleans up toxic arsenate. Which process do they use?Which breathing disorder name refers to stopping of breathing in sleep?Which gas is the end waste of both aerobic respiration and yeast fermentation?Which muscles lift the rib cage when you breathe in?Fermentation may begin even before oxygen runs out. In which activity?After a long sprint, what helps muscles recover from lactic acid?Which statement about fermentation without oxygen is correct?Three glucose molecules go through glycolysis, each netting 2 ATP. What is the total net A