DP Biology (last assessment 2024)

Test builder »

Question 19M.3.SL.TZ1.a

Select a Test
Date May 2019 Marks available [Maximum mark: 3] Reference code 19M.3.SL.TZ1.a
Level SL Paper 3 Time zone TZ1
Command term Outline Question number a Adapted from N/A
a.
[Maximum mark: 3]
19M.3.SL.TZ1.a

Hypochlorhydria is a condition whereby patients produce low quantities of stomach acid. Outline the effect this might have on the normal processes within the stomach.

[3]

Markscheme

a. reduced resistance to pathogens ✔

b. pH not optimum for pepsin activity ✔

c. activation of enzymes/pepsinogen is reduced ✔

d. reduced food/protein digestion ✔

Examiners report

This was often answered in terms of the functions of stomach acid rather than hypochlorydria, however this was not penalised. The effect on pathogens and reduced digestion were most often stated, and activation of enzymes very rarely.

Syllabus sections