Dilutions and Protein Food Tests in Paper 3

In this first paper 3 video, I explain some of the skills you need and the topics to focus on if you want to excel in paper 3
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[@reel_]

23:02' there's another trick to avoid this while using the same syringe it is by taking the lowest concentration first and then work your way up to the highest, e.g I take 0.001% first, then 0.01%, 0.1%,1% and lastly the highest 10% in each test tube while using the same syringe

[@skywalker5082]

Thank you so much for this it was so helpful!

[@keonaamod8005]

Can you please do the video on serial dilutions
Also if you can, can you do. A past paper in the lab

[@tjveyd]

Thank you for this Miss Demi!

[@emaanfatima8118]

hi miss pls make video on explaining specification points which are newly added i really have trouble in some points

[@AimAimMiaMia]

thank you so much!

[@dilutesodiumhydroxide3570]

Miss dont you have to write volume in 1 decimal place?

[@biowithdrdemi]

It depends on what they ask in the question. If they don't specify, write in two decimal places

[@devilstone8382]

Hi miss, just have a doubt about the syllabus, in the gas exchange system in 2021 we had to learn about smoking and the components of cigarette while in the 2022 they completely removed those so does that mean for students who's about to give the upcoming summer exams doesn't have to worry about smoking and what the components do to the body?
Thank you very much!

[@biowithdrdemi]

Yes that's what it means. You don't have to study whatever has been removed from the syllabus

[@devilstone8382]

@@biowithdrdemi thank you very much🥰❤

[@abnertv22]

Is this practical for A level or O level

[@biowithdrdemi]

A-level

[@ropafadzomwanza3781]

🎉

[@irtazasaleem7919]

Mam i am from pakistan how could be i the member ?

[@irtazasaleem7919]

Mam plz plz upload some videos on solving more p4 rather than the videos uploaded on your channel 🥺🥺🥺🙏🙏🙏