What did everyone put for the monoclonal antibody question? I think I put something about how antibodies bind to molecules in the blood so they can be detected and destroyed.

I ran out of time and didn’t answer 😢

Reply 193

anikamehra7

Ok so a lot of people are asking what grade their predicted mark would be. From the looks of it, most people found the exam easy, and this means 2 things:
1) Paper 2 will be much harder
2) The grade boundaries are bound to go up (especially because we are no longer the 1st year to sit these)
According to last year's grade boundaries:
9 - 64/100
8 - 56/100
7 - 48/100
6 - 40/100
5 - 32/100
4 - 25/100

My predicted grade boundaries would be 10% higher for each paper:
9 - 74/100
8 - 66/100
7 - 58/100

and so on...please don't boast about how easy you might have found the exam as I am quite sure not everyone did and it can make others feel bad. Good luck for your other exams :smile:

Reply 194

Kingcoldchain658

So did I

Original post by ogrimwood

I got 4000

Reply 195

happy.pirhana

if i said orange would that be fine? because in previous mark schemes they never specified that it changes to yellow in low conc, and orange in higher conc , and brick red in highest

Original post by Shrektacle

You have to add Benedicts and heat it. It turns from blue to brick red.

Reply 196

itsameliaax

Omg same! I was the only one as well

Original post by HiralGalaiya

Relatable lmao

Reply 197

username4339332

Was there a question what asked you to round your answer to 2 sf? I remember getting 10.4 in one answer, what question was it?

Reply 198

ZakGoulders

For the question about how to improve the pondweed test, I said to use Sodium Hydrogen Carbonate instead of water and use an LED bulb.

Reply 199

nasa1234

SAME!!!

Original post by shivixxx1111

what did people put for enzyme A and B question ?
for monoclonal antibodies I put that they target a specific antigen on the cancer cell membrane called a tumour marker and the antibody has a anti cancer drug which is a toxic drug only killing cancer cells and not the other healthy cells