Date | November 2019 | Marks available | 2 | Reference code | 19N.3.HL:.tz0.16 |
Level | Higher Level | Paper | Paper 3 | Time zone | time zone 0 |
Command term | Identify | Question number | 16 | Adapted from | N/A |
Question
State one acute effect of excessive alcohol use.
Identify possible effects of chronic and excessive alcohol use on the brain and liver.
Markscheme
increased urine production ✔
dehydration caused by the effect of alcohol on the release of ADH ✔
loss of coordination/ reduced ability to concentrate ✔
reduced inhibitions «become more aggressive» ✔
markedly reduced heart rate, potentially leading to unconsciousness or coma ✔
cognitive impairment - slurred speech/vision impairment ✔
vasodilation to the skin ✔
decreased blood viscosity ✔
reduced core body temperature ✔
raised blood pressure ✔
effects on kidney function ✔
slowed / impaired adaptation to heat and cold ✔
Accept appropriate example of effect
Brain:
loss of memory / blackouts ✔
causes poor muscle coordination ✔
anxiety and depression ✔
causes mental confusion ✔
cerebral hemorrhage ✔
causes paralysis of the eye ✔
deficiency in thiamine (B1) ✔
<due to liver disease> disturbed sleep patterns / mood / personality ✔
<due to liver disease> shaking hands ✔
Liver:
inflamed liver / liver disease ✔
cirrhosis/ scarring ✔
cancer ✔
fatty liver disease ✔
Award [1 max] per organ.