| Date | November 2017 | Marks available | 2 | Reference code | 17N.3.sl.TZ0.19 |
| Level | SL | Paper | 3 | Time zone | TZ0 |
| Command term | State | Question number | 19 | Adapted from | N/A |
Question
Oseltamivir (Tamiflu) and zanamivir (Relenza) are antiviral drugs used to prevent flu.
State the names of two functional groups that both compounds contain, using section 37 of the data booklet.
[2]
a.
Explain how oseltamivir and zanamivir can stop the spread of the flu virus in the body.
[2]
b.
Markscheme
Any two of:
amido
ether
carbonyl
Accept “amide/carboxamide”.
Accept “alkenyl/alkene”.
Accept “amino/amine”.
[Max 2 Marks]
a.
by preventing the virus from leaving the host cell
by inhibiting viral enzymes/neuraminidases «needed to release virus»
b.
Examiners report
[N/A]
a.
[N/A]
b.
