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Date May 2012 Marks available 1 Reference code 12M.1.HL.TZ1.7
Level Higher level Paper Paper 1 Time zone Time zone 1
Command term Identify Question number 7 Adapted from N/A

Question

Which sugars are both disaccharides?

A. maltose and lactose
B. lactose and fructose
C. fructose and galactose
D. galactose and maltose

Markscheme

A

Examiners report

Question 7 discriminated effectively between the stronger and weaker candidates, but the question was criticised by teachers for testing a small piece of factual knowledge. The curriculum review currently underway is responding to this by increasing the emphasis on understanding and reducing the emphasis on memorisation of specific facts.

Syllabus sections

Core » Topic 2: Molecular biology » 2.3 Carbohydrates and lipids
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