C6H12O6(S) + 6O2(g) → 6CO2(g) + 6H2O(g) Follow QI on Twitter ▶ / qikipedia Follow QI on Facebook ▶ / officialqi Follow QI on Instagram ▶ / theqielves Subscribe on YouTube ▶ / theqielves For more visit ▶ http://qi.com This clip is from QI Series C, Episode 9, 'Creatures' with Stephen Fry, Alan Davies, Helen Atkinson-Wood, Bill Bailey and Andy Hamilton.