AQA A level- Biology Paper 3 Unoffical markscheme

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wajopdsjf
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#1
Report Thread starter 3 years ago
#1
Q1: Describe ultrafiltration (3 marks)
b) Tick box (1 mark)
c)
d) Thicker medulla (3marks)

Q2)
Heart dissection...
Atro-ventricular valve
LEFT ventricle
PRECAUTIONS>>>
Scapel use ( cut away and its sharp....)
Gloves / sanitary precaution

Uni-directional ... Talk about pressure changes and valves opening and closing

Q

Maths questions
Volume of blood... 70-78 range
Percentage change 0.1%
Sphere volume ....
Hours of starfish.... 3Hours


Essay (25marks)
1. DNA and its use in tech
2.Bonding and bonds in organisms




Help me out with questions and i will edit!
Last edited by wajopdsjf; 3 years ago
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Dayoestfort
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#2
Report 1 year ago
#2
which exam was this? what year & month?
1
Buevrim
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#3
Report 1 year ago
#3
(Original post by wajopdsjf)
Q1: Describe ultrafiltration (3 marks)
b) Tick box (1 mark)
c)
d) Thicker medulla (3marks)

Q2)
Heart dissection...
Atro-ventricular valve
LEFT ventricle
PRECAUTIONS>>>
Scapel use ( cut away and its sharp....)
Gloves / sanitary precaution

Uni-directional ... Talk about pressure changes and valves opening and closing

Q

Maths questions
Volume of blood... 70-78 range
Percentage change 0.1%
Sphere volume ....
Hours of starfish.... 3Hours


Essay (25marks)
1. DNA and its use in tech
2.Bonding and bonds in organisms




Help me out with questions and i will edit!
Alex.F1240 is this of any help found on my hunt for paper 2
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Alex.f18
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#4
Report 1 year ago
#4
(Original post by Buevrim)
Alex.F1240 is this of any help found on my hunt for paper 2
Hey, sorry for my late reply, my account got banned and i had to make a new one. Im a bit confuesed right now because someone has emailed me a paper that says biology paper 3 2020 but it has completely different questions to the questions on this thread
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Buevrim
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#5
Report 1 year ago
#5
(Original post by Alex.f18)
Hey, sorry for my late reply, my account got banned and i had to make a new one. Im a bit confuesed right now because someone has emailed me a paper that says biology paper 3 2020 but it has completely different questions to the questions on this thread
this one hasn't got the year, so may not be 2020. maybe worth reading over it just in case idk
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Alex.f18
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#6
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#6
(Original post by Buevrim)
this one hasn't got the year, so may not be 2020. maybe worth reading over it just in case idk
Yea you’re right, thx for helping tho
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Cat b
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#7
Report 1 year ago
#7
That’s not paper 3
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