O-LevelBiologyHuman Nutrition5090/11 · May/June 2014 · Q91 Mark

The table shows the rates of absorption of two different sugars, arabinose and glucose, in living and dead intestines. The concentrations of the sugars inside the intestines were the same in each case. [Figure 9.1] What are the main methods of absorption of arabinose and glucose in living intestine?

Aactive transport active transport

Bactive transport diffusion

Cdiffusion active transport

Ddiffusion diffusion

✓ Correct answer

C: diffusion active transport

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Topic: Human Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2014 Paper 1 Variant 1, question 9.

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