A-LevelBiologyBiological molecules9700/12 · May/June 2014 · Q81 Mark
Four sugar solutions were tested with Benedict's solution. The table shows the colour of the solutions after testing. [Table 8.1] What is the best interpretation of the results?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Asolution 1: 0.05% reducing sugar, solution 2: 0.5% non-reducing sugar, solution 3: 1.0% reducing sugar, solution 4: 0.1% reducing sugar
Bsolution 1: 0.5% reducing sugar, solution 2: 0.0% reducing sugar, solution 3: 1.0% reducing sugar, solution 4: 0.1% reducing sugar
Csolution 1: 1.0% reducing sugar, solution 2: 1.0% non-reducing sugar, solution 3: 1.5% reducing sugar, solution 4: 0.5% reducing sugar
Dsolution 1: 0.05% non-reducing sugar, solution 2: 0.5% reducing sugar, solution 3: 1.0% non-reducing sugar, solution 4: 0.1% non-reducing sugar
✓ Correct answer
A: solution 1: 0.05% reducing sugar, solution 2: 0.5% non-reducing sugar, solution 3: 1.0% reducing sugar, solution 4: 0.1% reducing sugar
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Biological molecules and see which topics are most likely to come up next.
Sign up free →