Edexcel GCSE biology paper 1 Unofficial mark scheme

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Reply 80

tamilore11

I think I got 70-75

Reply 81

username4218074

yeah its the same thing really i just put the colour down too

Original post by Chlo4

I put that DNA is insoluble in cold alcohol and therefore you can get it out

Reply 82

tamilore11

Just need to repeat same performance in paper 2

Reply 83

Chlo4

I substituted lactose lactase and glucose into the starch and iodine practical to test for ph

Original post by sunnycloudyskies

oh and the questions about lactose
one of them was on "describe an experiment to find the optimum temperature of lactose"

Reply 84

ynxg_kami

its lens x

Original post by 06Dhoworth

i got lens x as well

Reply 85

M_m_m03

Same

Original post by Jbinning13

it was 0.21 but on the calculator gave 0.208

Reply 86

tamilore11

Everyone found it easy so I'm shook of boundaries for an8

Original post by Chlo4

I put that DNA is insoluble in cold alcohol and therefore you can get it out

I wrote the same as levi

Reply 87

M_m_m03

Anyone else mention antibiotics for the 6 marker considering it was a bacterium

Reply 88

physicslover24

Rate is 1/ time — the units of the rate of reaction where s^-1 which is 1/s

Original post by Jbinning13

it was 0.21 but on the calculator gave 0.208

SO it was 1/120

(edited 4 years ago)

Reply 89

tamilore11

I put test it at different temperature s then calculate rare of reaction for each one

Original post by sunnycloudyskies

oh and the questions about lactose
one of them was on "describe an experiment to find the optimum temperature of lactose"

Reply 90

physicslover24

Oh I did because I didn’t revise unit 5 very well and it was all I could think of lol

Original post by M_m_m03

Anyone else mention antibiotics for the 6 marker considering it was a bacterium

Reply 91

Thomas404

Original post by 06Dhoworth

What did people get for the rate question?

I got like 0.008s-1

It was 4.8

Reply 92

the_icy_goldfish

Original post by 06Dhoworth

What did people get for the rate question?

I got like 0.008s-1

it was 0.21s-1

0.008

Original post by cats786

Probs??

Isn’t oxygen produced tho

It was 0.008

Yes, but that eventually that would stop working

Original post by M_m_m03

Anyone else mention antibiotics for the 6 marker considering it was a bacterium

Reply 97

Xxxxxha

Original post by cats786

Lens x??

Yeah the concave one

Reply 98

username4083746

for the 6 marker i talked about condoms, antibiotics and samples you can send to the doctors to get medicine/treatment??? idk about the last one haha

Reply 99

Chlo4

1/120 = 0.0083

Original post by the_icy_goldfish

it was 0.21s-1

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Edexcel GCSE biology paper 1 Unofficial mark scheme

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