Give the balanced equation for aerobic respiration.
Reveal answer
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
Key words: C₆H₁₂O₆ · 6O₂
2(f) RESPIRATION · RECALL
2.37 Aerobic respiration equations
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Is aerobic respiration simply photosynthesis backwards?
Reveal answer
The overall equations are reversed, but the reactions, enzymes and organelles are different.
Key words: different
What is meant by the term word equation?
Reveal answer
An equation naming reactants and products in words.
Key words: word equation
What is meant by the term symbol equation?
Reveal answer
An equation using chemical formulae.
Key words: symbol equation
What is meant by the term oxidation?
Reveal answer
Loss of electrons or gain of oxygen; glucose is oxidised overall in aerobic respiration.
Key words: oxidation
What is meant by the term conservation of matter?
Reveal answer
Atoms are rearranged rather than created or destroyed.
Key words: conservation of matter
Reading the equation, Coefficients. What it shows? What it does not show?
Reveal answer
What it shows: Overall molecular or molar ratios. What it does not show: Rate or number of pathway steps.
Key words: Coefficients
Reading the equation, Balanced atoms. What it shows? What it does not show?
Reveal answer
What it shows: Conservation of matter. What it does not show: The route taken by each atom.
Key words: Balanced atoms
Reading the equation, Arrow. What it shows? What it does not show?
Reveal answer
What it shows: Overall direction of conversion. What it does not show: One instantaneous reaction.
Key words: Arrow
Reading the equation, Equation products. What it shows? What it does not show?
Reveal answer
What it shows: Carbon dioxide and water. What it does not show: A fixed universal ATP yield.
Key words: Equation products
True or false, and why? “ATP belongs after the arrow in the balanced chemical equation.”
Reveal answer
False. The specified material equation balances glucose, oxygen, carbon dioxide and water; ATP formation is coupled to the pathway.
True or false, and why? “The equation is balanced by changing O₂ to O₆.”
Reveal answer
False. Use coefficients; do not alter correct formulae.
True or false, and why? “One glucose molecule collides with six oxygen molecules in one step.”
Reveal answer
False. The overall equation summarises many enzyme-controlled reactions.
True or false, and why? “Respiration is uncontrolled burning inside cells.”
Reveal answer
False. It is a regulated, staged oxidation at cellular temperatures.
Give the word equation for aerobic respiration.
Reveal answer
Glucose + oxygen → carbon dioxide + water.
Key words: glucose · oxygen