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Exam Technique (New AS/A Level) - Q6 Biochemistry - Secure Specimen Paper 

Mr Pollock
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From the 'Teacher access only' pack of specimen assessment materials; here I go through Q6 for the new spec.
Biological importance of water, ions and transport across the membrane.
For AQA Students studying the new specification for exams in 2016 onwards.

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28 авг 2024

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Комментарии : 28   
@shabnumrashid5240
@shabnumrashid5240 8 лет назад
so lucky ur videos are out one week before my exams gona help me so much Thank you! !!!!!!!
@MrPollockBiology
@MrPollockBiology 8 лет назад
No probs! Glad I'm helping!
@Adam-md6nh
@Adam-md6nh 8 лет назад
Really useful mate all your vids are great :)
@MrPollockBiology
@MrPollockBiology 8 лет назад
Cheers!
@louisemoles9627
@louisemoles9627 8 лет назад
really helpful thanks so much!
@MrPollockBiology
@MrPollockBiology 8 лет назад
No worries!
@sarahahmed1672
@sarahahmed1672 8 лет назад
Really useful thanks, can you do the rest of the questions please
@MyNameIsShobzy
@MyNameIsShobzy 8 лет назад
Sir, doesn't water molecules pass through osmosis as it is small enough?
@MrPollockBiology
@MrPollockBiology 8 лет назад
Due to the hydrophobic fatty acid tails, it is unable to pass through.
@sea5205
@sea5205 5 лет назад
LOOOOL the intro😂😭😭
@zoya1769
@zoya1769 8 лет назад
For 6.2 would it be okay to put phosphate ion as it combines with ADP in respiration to form ATP which is required for active transport?
@MrPollockBiology
@MrPollockBiology 8 лет назад
Yup, phosphate is fine.
@umar757
@umar757 8 лет назад
in textbooks it says nothing about water and channel proteins and that it just simply diffuses through the membrane because its small enough :(
@fatimaawow3193
@fatimaawow3193 8 лет назад
+Umar Hussain Water can diffuse through despite being polar as it is small enough but water can also travel through special channel proteins called aquaporins
@MrPollockBiology
@MrPollockBiology 8 лет назад
The new spec textbook are a little sketchy in places; I think having a marking point for aquaporins is unfair as it's not on your spec. I feel they had to include it because it is technically correct.
@MrPollockBiology
@MrPollockBiology 8 лет назад
Good response. Thanks!
@umar757
@umar757 8 лет назад
do you think tomorrows paper will be anything like the specimens , I found the mark scheme harsher than usual :(
@jameshall7409
@jameshall7409 8 лет назад
+Umar Hussain for the sake of us all I hope not
@LuLuArashi
@LuLuArashi 8 лет назад
Sir can you please do old bio6 essay predictions? There are still loads of people doing it and need it urgently
@MrPollockBiology
@MrPollockBiology 8 лет назад
Will do; priorities are exams that are sooner...It's coming though!
@zoya1769
@zoya1769 8 лет назад
Hi, so I did this paper and I got 60/75 :( What do you think the grade boundaries would be for this paper?
@jamesdoesVLOGGING
@jamesdoesVLOGGING 8 лет назад
+Zoey M 70% A, 60% B, 50% C (and so on) is a safe bet
@MrPollockBiology
@MrPollockBiology 8 лет назад
Agreed. Maybe a little lower with it being first year of spec.
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