Question 19M.3.sl.TZ2.a(ii)
| Date | May 2019 | Marks available | [Maximum mark: 2] | Reference code | 19M.3.sl.TZ2.a(ii) |
| Level | sl | Paper | 3 | Time zone | TZ2 |
| Command term | Outline | Question number | a(ii) | Adapted from | N/A |
Excess acid in the stomach can cause breakdown of the stomach lining.
Outline two advantages of taking ranitidine instead of an antacid which neutralizes excess acid.
[2]
Any two of:
ranitidine can be effective in treating ulcers «but antacid is not» [✔]
ranitidine can prevent long-term damage «from overproduction of acid and antacid does not» [✔]
ranitidine has a long-term effect «and antacid has short-term effect only» [✔]
ranitidine does not affect ionic balance in body «and antacid does» [✔]
ranitidine does not produce bloating/flatulence [✔]
Note: Accept “ranitidine stops the over production of acid in the stomach while antacids neutralize the excess acid giving temporary relief”.
While most students were awarded at least one of the two marks possible for this question some of the descriptions were too vague or incomplete to receive a mark.
