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2016 AQA Biology Unit 1 - Unofficial Mark scheme 2016

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There was the question about the snails

Green land had strips and were light coloured - so camouflage
Original post by charliej2802
Yeah should be fine!


Really? Isn't that an organ on the head so it's controlled by the brain??

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Original post by lunaticash19995
I thought you had to times by 100


Nope, 2*10^6 / 3*10^8 = 0.0066666666..., then you multiply that by 100% to get 0.6666666666...%
Reply 43
Avatar for Haashym
Haashym
5
Original post by InneRs
Are you sure you put braket?
How did I get 0.6%?


What's 0.15 x 2000000
Praying for low grade boundaries :eek:
Original post by lilyflowerxoxo
There was the question about the snails

Green land had strips and were light coloured - so camouflage


They were being so cheeky with that, those images were different to the actual snails in the answer

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Reply 46
Avatar for MCArth
MCArth
9
Original post by Ollie1999
What points did you guys make for the 6 marker question. Completely wasn't expecting healthy diet question.


Off the top of my head:

Carbohydrates - Release energy for use in the body such as muscle contraction

Proteins - Making new cells, repairing cells.

Fats and Oils - Making cell membranes, insulator

Water - Hydration

Fibre - Keeping your gut healthy and helping food move through your small intenstine

Vitamins - General healthy functioning and upkeep of your body
You man are Chadday
Original post by Haashym
What's 0.15 x 2000000


Why are you multiplying it by 0.15?
Reply 49
Avatar for nuraaa
nuraaa
4
What the hell was that paper omg is this a joke
i hope your happy aqa
Original post by lunaticash19995
I thought you had to times by 100


It was the number who died divided by the number who suffered from malaria x 100 which gave me 0.(6 recurring). That's how I did it anyway.
That was easyyyyy


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Reply 52
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BH1234
3
I found that exam fairly easy, although I'm only aiming for a B in it so...
Reply 53
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Ahmed74
2
Original post by charliej2802
Yeah should be fine!


What about ears?
Original post by lilyflowerxoxo
For the sense organ one would eyes be okay?


Isn't that controlled by the brain ?
Original post by Ahmed74
What about ears?


Also controlled by the brain I think? I played it safe and put skin so touch
Give what a receptor and effector is and an example

Receptor : something that detects a change in environment eg. Light receptor

Effector: what causes the response eg. Muscle
Reply 57
Avatar for Haashym
Haashym
5
The indicator species answer was lichens and the environmental factor was air pollution

GM Mosquito - enzymes used to take out gene (first mark) the gene is transferred to the mosquito (second mark) at an early stage of development (third mark)

Scatter graph used to show the negative correlation
(edited 7 years ago)
I did the exact same thing ooops

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What was the answer to the question about brain sensitivity to alcohol and nicotine


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