page 06 7. In an investigation into fermentation, yeast was grown in a flask of glucose solution for 20 hours at 20 °C. The graph shows the concentrations of ethanol and glucose in the flask over the period of the investigation. Ethanol concentration (grams per litre) Glucose concentration (grams per litre) Time (hours) 0 5 10 15 20 0 1 2 3 4 0 2 4 6 8 What was the glucose concentration when the ethanol concentration was 3·3 grams per litre? A 1·2 grams per litre B 2·2 grams per litre C 2·4 grams per litre D 6·6 grams per litre
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This question is part of the UK A-Level Biology syllabus. In the actual exam, structured questions typically require linking specific keywords to gain full marks. Applaa helps you drill these topics.
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