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Question 19N.3.HL.TZ0.19b

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.HL.TZ0.19b
Level HL Paper 3 Time zone TZ0
Command term Suggest Question number b Adapted from N/A
b.
[Maximum mark: 1]
19N.3.HL.TZ0.19b

The table below summarizes the distribution of the amino acids lysine and tryptophan in four food items.

The table below shows the average content of lysine and tryptophan in diets of the UK and India. The Indian diet is mainly vegetarian.

[Source: reprinted from Protein and amino acid requirements in human nutrition. Copyright (2007).
https://www.who.int/nutrition/publications/nutrientrequirements/WHO_TRS_935/en/]

(b)

Using the data from the tables, suggest a reason for the differences in lysine concentration in the diets from the UK and India.

[1]

Markscheme

Indian diet based on rice and wheat which have low levels of lysine
OR
low levels of meat/milk in Indian diet
OR
high levels of meat/milk in UK diet ✔

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