Unofficial Mark scheme: AQA GCSE Biology Higher Combined 8464/1H 16th May 2023

Here’s some of the questions I remember
There was a 6 marker on the microscopy practical, finding the mean length of onion cells
-what’s a double circulatory system
-where is the pacemaker located
-structural differences between a valve and artery NOT including valves
-how stem cells move into antibiotics- reason
-6 marker on should stem cells in antibiotics be used to treat ALL diseases of some sort
-where is the epidermis located- it was A
-Adaption of the spongy mesophyll
-Calculating the mean of some graph

i’m pretty sure you were supposed to take the readings from the graph and look at the other one. The values i got was at 3 minutes it was 0.3 at 2 minutes it was 1.8 and at 1 minute it was at 0.8 i added them together and i got 2.9 then i divided it by 3 and got 0.97

What did you get for the pacemaker?

What did you get for the pacemaker?

I feel like I really really messed up paper one is there still a change that I can get a 7-7?

I hope paper two is way better than this. Instead of being asked on cells and diffusion etc, we were asked on ******* amylase starch solution, stem cells and antibiotics, government policies, and microscopes lmao

How would Athlete's feet how can you prevent that from spreading or something like that???

For the structural differences of arteries and vein I put that artistic have elastic fibres and veins do not
Artistries are thick and veins are not. Would this get my the 2 marks

The govt policies was the most unexpected one


keep feets dry

i said reduce exposure to moist conditions, would that still get it do you think?

I somehow got 0.75 for the mean graph thing

i said reduce exposure to moist conditions, would that still get it do you think?

if it’s 0g/dm3 concentration meaning it’s not concentrated, so wouldn’t it be distilled water?

I somehow got 0.75 for the mean graph thing

i got that aswell but not sure if you had to include the value at 0 or not so really stressed me out in the exam, what do you think?

yes thats what i got