Edexcel IAL Biology 7.1 Aerobic respiration overview

Write and balance the overall equation, assign products to glycolysis, Krebs or oxidative phosphorylation and show the energy or percentage calculation with units.

Exam points

Balance aerobic respiration equations for glucose or another stated substrate.
Identify products of glycolysis, Krebs cycle and oxidative phosphorylation.
Calculate ATP energy transfer or efficiency from the supplied energy values.

[Maximum number: 2]

Aerobic respiration is made up of several stages.

Write a balanced equation for the complete oxidation of glucose in aerobic respiration.

An answer showing the following steps:

- equation (1)

- balanced equation (1)

accept incorrect formula e.g. CO2 accept correct word equation

e.g. $\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}+6 \mathrm{O}_{2} \rightarrow 6 \mathrm{CO}_{2}+6 \mathrm{H}_{2} \mathrm{O}$ ignore ATP / ADP

1 mark if equation correct but not balanced

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7.1—Aerobic respiration overview question 1