2.28 Peristalsis
Exam question
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Which statement describes peristalsis?
(1)Total for this question: 1 mark
2(e) NUTRITION · EXAM QUESTIONS
2.28 Peristalsis
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2.28 Peristalsis
Exam question
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Describe how peristalsis moves food along the alimentary canal.
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Total for this question: 3 marks
2.28 Peristalsis
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Explain why food still reaches the stomach when a person swallows while upside down.
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Total for this question: 2 marks
2.28 Peristalsis
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Name the two layers of muscle in the wall of the gut used in peristalsis.
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Total for this question: 2 marks
2.28 Peristalsis
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Explain how dietary fibre helps peristalsis.
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Total for this question: 2 marks
2.28 Peristalsis
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Suggest why a person whose gut muscles do not contract properly may suffer from constipation.
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Total for this question: 2 marks
2.28 Peristalsis
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State one part of the alimentary canal, other than the oesophagus, where peristalsis happens.
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Total for this question: 1 mark
2.28 Peristalsis
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Describe the role of circular muscle in peristalsis.
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Total for this question: 2 marks
2.28 Peristalsis
Exam question
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Explain why the walls of the alimentary canal contain muscle.
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Total for this question: 2 marks
2.28 Peristalsis
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A doctor feeds a patient a liquid meal containing a dye that shows on X-rays. Suggest how this could show that peristalsis is working.
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Total for this question: 2 marks
2.28 Peristalsis
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Compare the movement of food in peristalsis with the movement of a bolus being chewed.
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Total for this question: 2 marks
2.28 Peristalsis
Exam question
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Explain why food does not fall straight down the oesophagus when swallowed.
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Total for this question: 2 marks
2.28 Peristalsis
Exam question
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Describe what is meant by a bolus.
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Total for this question: 1 mark