AQA A-Level Biology June 2022 Paper 1 [Walkthrough, Tutorial, and Exam Technique]

[@adaam1281]

the legend is back

[@cupcakecavlry5560]

I’m gonna be called the cook book after I’ve left the exam tomorrow 🙏🙏🙏 (it’s either cook or be cooked)

[@chiamakaonwudiwe9141]

lmaooo so real im just binge watching all his videos

[@alexisgeorge183]

The fact seeing a new video has been posted has actually made my day is quite sad

[@the-a-level-cookbook]

aye bro it’ll be done soon and remember that these exams and grades don’t define your worth, even if it seems like society says otherwise

[@aarijkhan8093]

just about to do this paper after lunch, the goat is back

[@willtickytocky9629]

for Question 3.4 the answer doesnt need u to measure with a ruler ??? its just 4nm -1.1nm-1.1nm = 1.8 then divide 1.8 by 2 do get the radius ...

[@patrickjones8585]

facts bro

[@user-rm4wf6vr2g]

19:10 was hilarious 😭

[@sksksk2348]

lol fr

[@sr3527]

Please do AS paper walkthroughs 🙏

[@Sssafdar7892]

Hey! How do you know that at 43:16 the frequency is number affected divided by total ? Is it an equation that we need to know ? Thank you!!

[@the-a-level-cookbook]

it's not an equation aha, the total number for MM1 was 730 and the total for MM2 was 230, the "frequency" bit means what fraction/decimal represents them (e.g. a 0.05 frequency in the MM1 group would be 0.05 x 730 haha)

[@Sssafdar7892]

@@the-a-level-cookbookoh thank you so much!😅 also, these videos are so helpful, bless you.

[@bluecurtain]

For 5.3, if you used denatured enzymes surely the substrate concentration would'nt decrease as it does in figure 8. I don't understand why you wouldnt use the same mass of a different enzyme to P and Q and use it as a standard.

[@the-a-level-cookbook]

the point of the experiment is to see if the enzymes P and Q are affected by pH, using a different enzyme would throw in another enzyme to the picture and you wouldn't be able to tell that the pH is the sole reason their activities are changing - that's why you denature the enzymes instead so you know the only changes seen are due to changes in pH

[@alexhodkinson658]

@@the-a-level-cookbook so why does the substrate concentration decrease? As if a substrate cannot bind to the enzyme why would it then decrease?

[@izaan3953]

@@alexhodkinson658 denaturation leads to either reduced activity or complete inhibition of substrates from binding so in this case its reduced activity

[@FallenBankai]

finally back

[@Moshimonster8951]

For question 5 why wouldn't you say that the substrate plateaus?

[@the-a-level-cookbook]

it’s fine to but in some scenarios the y-axis value becomes constant and a flat line - saying it plateaus in some mark schemes doesn’t get the idea across that it’s now become constant, if that makes sense

[@giovannipaoloboyd-trevisan752]

Hi there, i believe this is the 2022 paper 1 and not the 2022 paper 2 like stated in the title

[@the-a-level-cookbook]

hi, this is the 2022 paper, i just re-used an old clip for the first part haha

[@p_king8767]

totally not watching the day before my exam

[@mrqwerty4792]

same

[@ybctoocool]

can you also do p2 2017

[@MissRM-n8i]

Can you please do June 2022 paper 3 please😊 new subscriber here, thank you for these walkthroughs!

[@flame5232]

facts for ong 9:17

[@rachellbaren3061]

you could have worked out Q 3.4 without a ruler, you did not need to skip the question lol

[@ybctoocool]

goat
is
back

[@bingxiao5274]

I love you