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Question 19M.3.HL.TZ1.c.i

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.3.HL.TZ1.c.i
Level HL Paper 3 Time zone TZ1
Command term State Question number c.i Adapted from N/A
c.i.
[Maximum mark: 1]
19M.3.HL.TZ1.c.i

Water in a calorimeter is heated by burning food in oxygen. The temperature change of the water is used to calculate the energy value of the food. An experiment was set up to calculate the energy value of avocado.

[Source: © International Baccalaureate Organization 2019]

Avocados are known to be a good source of dietary fibre and contain all the essential amino acids. State one health benefit of a diet high in fibre.

[1]

Markscheme

helps in movement of food along alimentary canal/peristalsis/decreases transit time
OR
regulates bowel action
OR
prevents cancer/constipation/heart attack ✔

Examiners report

This was answered well although many students resorted to colloquialisms when referring to bowel action.

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