O-LevelBiologyHuman Nutrition5090/11 · May/June 2010 · Q81 Mark

The diagram shows a section of the small intestine in which partially digested food is being pushed along. What is the state of the longitudinal muscles at 1 and 2? [Figure 8.1]

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A1 contracted, 2 contracted

B1 contracted, 2 relaxed

C1 relaxed, 2 contracted

D1 relaxed, 2 relaxed

✓ Correct answer

B: 1 contracted, 2 relaxed

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Topic: Human Nutrition, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2010 Paper 1 Variant 1, question 8.

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