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AQA A level- Biology Paper 3 Unoffical markscheme

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!
(edited 4 years ago)
which exam was this? what year & month?
Reply 2
Avatar for Buevrim
Buevrim
13
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
Reply 3
Avatar for Alex.f18
Alex.f18
8
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
Reply 4
Avatar for Buevrim
Buevrim
13
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
Reply 5
Avatar for Alex.f18
Alex.f18
8
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
Reply 6
Avatar for Cat b
Cat b
15
That’s not paper 3

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