2.31 Roles of bile
Exam question
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What does bile do to lipids?
(1)Total for this question: 1 mark
2(e) NUTRITION · EXAM QUESTIONS
2.31 Roles of bile
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2.31 Roles of bile
Exam question
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Give the two roles of bile in digestion.
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Total for this question: 2 marks
2.31 Roles of bile
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Explain how bile helps lipase to digest fat.
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Total for this question: 3 marks
2.31 Roles of bile
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Explain why bile neutralising stomach acid helps digestion in the small intestine.
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Total for this question: 2 marks
2.31 Roles of bile
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Explain why emulsifying fat does not change the total amount of fat.
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Total for this question: 2 marks
2.31 Roles of bile
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Describe an experiment to show that bile speeds up the digestion of fat by lipase.
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Total for this question: 2 marks
2.31 Roles of bile
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Predict and explain what happens to the pH of milk when lipase is added.
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Total for this question: 2 marks
2.31 Roles of bile
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Explain why bile is described as an emulsifier rather than an enzyme.
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Total for this question: 2 marks
2.31 Roles of bile
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In an experiment, milk with lipase and bile reached pH 6 in 4 minutes; milk with lipase only took 11 minutes. Explain the difference.
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Total for this question: 3 marks
2.31 Roles of bile
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Milk with lipase and bile took 4 minutes to reach pH 6. Milk with lipase only took 11 minutes. Calculate the percentage decrease in time when bile was added.
(2)%Total for this question: 2 marks