WAEC Biology 2010 Theory — Question 1
Question 1 of 23 from the West African Examinations Council (WAEC) Biology 2010 Theory paper, with the correct answer and a full explanation.
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PART I (Answer two questions only from this part) 1(a) Write the chemical equation for each of the following processes: (i) aerobic respiration (ii) anaerobic respiration in plants (iii) anaerobic respiration in animals. [6 marks]
Model answer
(i) Aerobic respiration: C6H12O6 + 6O2 -> 6CO2 + 6H2O + Energy. (ii) Anaerobic respiration in plants: C6H12O6 -> 2CO2 + 2C2H5OH + Energy. (iii) Anaerobic respiration in animals: C6H12O6 -> 2CH3CH(OH)COOH + Energy (lactic acid).
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