AQA Triple Science GCSE Biology - Paper 1 - 14th May 2019 Unofficial Markscheme Watch

aust.n
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#781
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#781
Changing the lamp to LED and using gas syringe was what I put for the two changes for the experiment
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TheCapstan
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#782
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#782
(Original post by ZippyDoodah)
Less enzymes produced,
So less food digested,
so less proteins and glucose absorbed into blood,
so less glucose for energy, and less protein for growth and repair.
its do with osmosis, nothing to do with energy
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Totototototo
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#783
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#783
Yh i wrote about anaerobic and how it releases little energy didnt talk about lactic acid though
(Original post by Claydo66)
The one about exercise did anyone else write about anaerobic respiration and lactic acid?
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Collapsed26
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(Original post by Claydo66)
The one about exercise did anyone else write about anaerobic respiration and lactic acid?
Yes, busted valve means low blood pressure, blood doesnt circulate quick enough to provide o2 to the muscle cells so lactic acid is made, person is in pain
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Aimee.xo
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#785
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#785
Was the line of best fit meant to be straight or curved??
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SIH03
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#786
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(Original post by Claydo66)
The one about exercise did anyone else write about anaerobic respiration and lactic acid?
i mentioned anaerobic respiration near the end, didn't dig into detail
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happy.pirhana
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#787
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#787
why do i not rmemeber this question
(Original post by dani12345lol)
if the test was benedicts solution then what is the chemical that break glucose down????????
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jeriu
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#788
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#788
i got -0.2mm in the magnification question and said that the carbohydrase is made in the ass, the nucleas makes co2 right ???, am i wright


btw that test was so easy, i think i only lost like 2 marks on stupid mistakes
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BooperDooper1202
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#789
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#789
I walked out of the exam feeling pretty confident but know I've realized that I'm doomed. Put x40 for the magnification question. 10.4 for the rate question without rounding it. Nothing about stem cells or paralysis for the regenerative cells. I didn't put anything about stem cells attaching to toxins or whatever with cancer cells. I want to take biology at a-levels but now idk if I'll get that grade 6 I need. I'm gonna go off into a corner and cry now.
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aust.n
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#790
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#790
Curved (I also ensured it didn't start from the origin)
(Original post by Aimee.xo)
Was the line of best fit meant to be straight or curved??
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Alicerosep28
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#791
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#791
Yep I did!
(Original post by Claydo66)
The one about exercise did anyone else write about anaerobic respiration and lactic acid?
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sameer241002
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#792
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#792
(Original post by TheCapstan)
no man you read the graph wrong, it wasnt in minutes it was in hours. 1.5 hours 2 hours etc
lol i know that mate, it was between 2.5 hours and 3 hours which is only half an hour...
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hellogcse
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#793
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#793
That's exactly what ive done
(Original post by amzyyxx)
i drew an animal cell and labelled cell membrane and nucleus
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happy.pirhana
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#794
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#794
i made a curve because it looked nothing liek a line to me

(Original post by Aimee.xo)
Was the line of best fit meant to be straight or curved??
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UnknownZedd
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#795
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#795
Curve



(Original post by Aimee.xo)
Was the line of best fit meant to be straight or curved??
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Totototototo
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#796
Apparently u have to say you need to repeat the experiment but the gas syringe bit is correct

(Original post by aust.n)
Changing the lamp to LED and using gas syringe was what I put for the two changes for the experiment
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SIH03
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#797
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#797
straight at first, curved so it became horizontal, stayed that way for 2 points or something
(Original post by Aimee.xo)
Was the line of best fit meant to be straight or curved??
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RaphaeI
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#798
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#798
I got 3.3
(Original post by Thattestwsseasy)
Anyone get the line question where it asked for 75 volts = 1.85
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Antzforoli
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#799
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#799
Guys, just remember there could be more than one right answer!
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aidjodad
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#800
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#800
it was in combined not triple



(Original post by epic!)
What was the cube question? I do triple and I don’t remember it.. what was the question?
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