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Biology Paper 1 Edexcel 2019

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erm starch was blue black and then NOT protein was blue.
Original post by cats786
What about the first one which solution
if it makes you feel 10x better, ive got all the maths questions wrong.
Original post by Pri125
Oh ffs I forgot to mention about the cells being haploid and diploid
Reply 22
Oh my dayssss I was gonna times it at first but then I divided it instead
Original post by kate_howard_1
thought it was easy until i came home and realised that you times by 1000 n not divide for converting measurements when getting smaller.
Was is not solution x
Blue/black and purple???
Original post by kate_howard_1
erm starch was blue black and then NOT protein was blue.
Reply 24
Was it 130nm for that cell size conversion one?
Original post by cats786
Was is not solution x
Blue/black and purple???


I think protein goes purple if there’s protein present and it said protein wasn’t present so it goes blue. But not too sure x
I said that synapses are gaps between 2 neurons and where neurotransmitters are released. The axon terminals from the first neuron release the impulse into the synapse and are received by the dendrites of the neighboring neuron. Synapses ensure that an impulse travels in one direction and slow down neurotransmission.

Idk if it’s right tho 😩
Original post by Lella99x
What did you say for the last question
What was the awnser for the 0.15% population one and how do you do it
Some of the multiple choice q
RNA polymerase
0.0083s-1
Oxygen and chlorophyll
RNA polymerase
Eukarya
Reply 29
Times the 0.15% by 10.
Makes it 15%
Divide 15% by 3
5% times 20 = 100%

I think
Original post by Lella99x
What was the awnser for the 0.15% population one and how do you do it

EDIT: Actually times the 0.15% by 100, not 10
(edited 4 years ago)
That’s what I did
Original post by Amrinder27
Wtf are you on about they give you the deaths you just multiply it by 0.15%
Nah that’s totally wrong
I originally divided it then just multiplied by 1000 instead
Original post by Pri125
Oh my dayssss I was gonna times it at first but then I divided it instead
What did u get for punnet square 6 marker
Original post by kate_howard_1
yeah i got that n it was concave.


Its, called a diverging lens :smile:
Original post by the_icy_goldfish
Its, called a diverging lens :smile:


They’re the same x
I think it was 1.3
Original post by AuTalon
Was it 130nm for that cell size conversion one?
I filled in the punnet square and wrote about a and b being heterozygous dominant and o recessive homozygous
I wrote about it being 25% chance it’s o
Original post by Bakr_935
What did u get for punnet square 6 marker
No you don’t
Original post by Amrinder27
Wtf are you on about they give you the deaths you just multiply it by 0.15%
25% for each and one was blood type AB as they are co-dominant also both parents had to be heterozygous because if their child was O and A and B are dominant over O then the child must have both O alleles. Also for filling out the square, the alleles must be written in i to the power of A and i to the power of B and so on. Also just add definitions of things like recessive and dominant etc.
Original post by Bakr_935
What did u get for punnet square 6 marker

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