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Question 18M.3.HL.TZ2.c

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.3.HL.TZ2.c
Level HL Paper 3 Time zone TZ2
Command term Explain Question number c Adapted from N/A
c.
[Maximum mark: 2]
18M.3.HL.TZ2.c

Explain why proton pump inhibitors alleviate the symptoms of H. pylori infections.

[2]

Markscheme

a. as proton pumps are inhibited less protons/H+ into stomach «lumen» 

b. «less protons/H+ in stomach» less hydrochloric acid produced 
OR
stomach «contents» become less acidic 
OWTTE.

c. stomach heals with higher pH

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