DP Biology (last assessment 2024)

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Question 21M.2.SL.TZ1.3a

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Date May 2021 Marks available [Maximum mark: 2] Reference code 21M.2.SL.TZ1.3a
Level SL Paper 2 Time zone TZ1
Command term Outline Question number a Adapted from N/A
a.
[Maximum mark: 2]
21M.2.SL.TZ1.3a

Celiac disease is an immune reaction to eating gluten, a protein found in many cereals. The diagram shows the arrangement of normal villi and villi affected by celiac disease in the small intestine.

(a)

Outline the functions of the villi in the small intestine.

[2]

Markscheme

a. increase the surface area for absorption ✔

b. absorption of digested foods/nutrients ✔

c. absorption of mineral ions/vitamins ✔

Examiners report

Generally, parts (a) and (b) were answered clearly and in alignment with the command terms.

Syllabus sections