DP Chemistry (last assessment 2024)

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Question 23M.3.SL.TZ2.19

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Date May 2023 Marks available [Maximum mark: 2] Reference code 23M.3.SL.TZ2.19
Level SL Paper 3 Time zone TZ2
Command term Explain Question number 19 Adapted from N/A
19.
[Maximum mark: 2]
23M.3.SL.TZ2.19

Explain two different ways antiviral medications work.

[2]

Markscheme

Any two of:

alters «viral» enzyme AND prevent virus from entering the cell ✓.

alter the cell DNA AND virus cannot multiply ✓

block «cell» enzyme activity AND prevent virus multiplication ✓

alters «viral» enzyme AND prevents release of «new» viral particles «from the cell» ✓

 

Do not accept “just interferes with viral reproductive cycle”.

Award [1 max] for two partial answers.