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Date November 2012 Marks available 2 Reference code 12N.3.HL.TZ0.14
Level Higher level Paper Paper 3 Time zone TZ0
Command term State Question number 14 Adapted from N/A

Question

The table shows the death rate due to coronary heart disease (CHD) in two different countries.

Using the table below, outline three named factors that could be responsible for the differences between the two populations.

[3]
a.

State four glands secreting digestive juices into the alimentary canal. 

1. .............................................................
2. .............................................................
3. .............................................................
4. .............................................................

[2]
b (i).

Markscheme

Award [1] for a factor and a corresponding outline.

a.

Award [1] for two correct glands.
salivary glands;
gastric glands;
pancreas;
wall of the small intestine;

b (i).

Examiners report

There was a wide range of answers about factors causing CHDs and the majority of candidates gained all marks despite the fact that many answers did not really outline how these factors acted and could differ between the different populations. Candidates were not penalized for their obvious and general lack of knowledge about the habits of the two populations.

a.

Most candidates gained at least one mark for the digestive glands, but many answers contained incorrect (e.g. endocrine gland, liver, bile duct) or too vague (e.g. intestine) elements.

b (i).

Syllabus sections

Option D: Human physiology » Option D: Human physiology (Core topics) » D.1 Human nutrition
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