| Date | May 2017 | Marks available | 3 | Reference code | 17M.3.HL.TZ2.20 |
| Level | Higher level | Paper | Paper 3 | Time zone | Time zone 2 |
| Command term | Outline | Question number | 20 | Adapted from | N/A |
Question
Outline how infection by Vibrio cholerae can lead to dehydration.
Markscheme
a. V. cholerae produces toxin
b. «toxin» causes ions to be pumped into «small» intestine
c. drawing water into the intestine
d. through osmosis
e. leading to water loss through diarrhea/vomiting
OR
leading to dehydration
Examiners report
[N/A]
