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AQA GCSE Biology Paper 1 (Higher Tier) 8461/1H - 17 May 2022 [Unofficial Mark Scheme]

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AQA GCSE Biology Paper 1 (Higher Tier) 8461/1H - 17 May 2022 [Unofficial Mark Scheme]

⭐️ Firstly, well done to everyone who took it! ⭐️
Any additions/edits you can suggest will be appreciated :cheers:

@Evil Homer

Question One: Cells (?)

1.1 Table:
| Nucleus Function: Contains Genetic Information
| Mitochondria: Site of Aerobic Respiration
| Cell Membrane: Controls what goes in and out of cells
1.2 Function of chloroplasts? - Site of photosynthesis
1.3 Name a potato cell that does not contain chloroplasts? - Root hair cell
1.4
1.5
1.6
1.7 Straight or Curved? [Range seems to be about 0.30-0.40?]

Question Two

2.1
2.2
2.3
2.4
2.5


Question Seven: HIV


7.1 How is HIV transmitted?
7.2 Describe the trend of the data from 2010-2018
7.3 Why has the number of cases dropped? - More awareness/More contraception?
7.4 How do vaccines for HIV work?
7.5 Producing monoclonal antibodies!
7.6 How do monoclonal antibodies work to stop HIV from developing AIDS?

Misc (Unknown Number): Which disease is a fungus? - Rose Black Spot
What would you use for testing proteins? - Biuret Reagent
Difference between translocation and transpiration?
Hazards for the onion cell practical?
Six Marker: Meat-free burgers vs Burgers
Four Marker: Mitosis creating identical daughter cells
Six Marker: Damaged Tree Roots
Four Marker: How are alveoli and villi adapted to their use?
Six Marker: Why have moth hornets adapted to look like hornets?
Two Marker: What two differences does an image produced by an electron microscope have compared to one with a light microscope?
Two Marker: Diagram of onion cells - two ways how a student could improve it?
Calculation of Missing SA: Volume Ratio - X:1
Describe the trend between the size of the organism and the ratio
Why do some larger organisms need a higher metabolic rate, compared to an organism with a lower ratio?
Four Marker: Explain why the width of stomata of the plant in normal conditions helps the plant?
Two Marker: Describe the stomata width of plant in low CO2 concentration
Organism D has a higher metabolic rate than organism E, use data from the table and your own knowledge to explain why;
Misc (Unclear): Hornet Question, HIV Question, Plant Question

Underwhelmed Comments: Food tests were only one mark.
(edited 9 months ago)

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Why was enzyme protease added in the extraction of DNA?
How does bacteria get resistant to antibiotics?( something on the lines)
Reply 2
Original post by anayasyed
Why was enzyme protease added in the extraction of DNA?
How does bacteria get resistant to antibiotics?( something on the lines)

I don't think we had anything like that?
Original post by agent37
I don't think we had anything like that?

Ooops sorry thought it was edexcel😅
Reply 4
Original post by anayasyed
Ooops sorry thought it was edexcel😅

All good, no problem :smile:

Anti-biotics was cut out of our paper, I think! WEll done on getting through it anyway!
you may have been on triple cos i didnt have that as i was on triple higher exam
Original post by agent37
AQA GCSE Biology Paper 1 (both tiers) 8461/1H - 17 May 2022 [Unofficial Mark Scheme]

⭐️ Firstly, well done to everyone who took it! ⭐️
Any additions/edits you can suggest will be appreciated :cheers:

@Evil Homer

Question One
1.1 Nucleus Function: Contains Genetic Information | Mitochondria: Site of Aerobic Respiration | Cell Membrane: Controls what goes in and out of cells
1.2
1.3
1.4
1.5
1.6
1.7 Straight or Curved? [Ranger seems to be about

Question Two

2.1
2.2
2.3
2.4
2.5

Congratulations of getting through your exam. Hopefully people see this and help you will it in :smile:
Reply 7
Original post by Evil Homer
Congratulations of getting through your exam. Hopefully people see this and help you will it in :smile:

Thank you very much! :biggrin:
Original post by agent37
All good, no problem :smile:

Anti-biotics was cut out of our paper, I think! WEll done on getting through it anyway!


anti biotics was in the combined foundation, it said it wasnt on the paper and then it was (i was on higher triple) but my friends told me that there was antibiotic questions
Original post by Jdubs323
anti biotics was in the combined foundation, it said it wasnt on the paper and then it was (i was on higher triple) but my friends told me that there was antibiotic questions

It was in the specifivation for it as i did triple higher as well. How did it go for you?
1.3 was root hair cell as the roots are underground so they don't need chlorophyll :smile:
7.4 was about how vaccines for HIV would work
7.5 was about producing monoclonal antibodies
Reply 12
Original post by amxn.27
1.3 was root hair cell as the roots are underground so they don't need chlorophyll :smile:

Thank you smmm :biggrin:

Original post by potatoes25
7.4 was about how vaccines for HIV would work
7.5 was about producing monoclonal antibodies

Absolute legend, kudos for remembering :wink:
I don't remember the question number but there was a multiple choice about which disease was a fungus and the answer (hopefully) was rose black spot
Original post by dmayduck
I don't remember the question number but there was a multiple choice about which disease was a fungus and the answer (hopefully) was rose black spot

yep it was
Original post by dmayduck
I don't remember the question number but there was a multiple choice about which disease was a fungus and the answer (hopefully) was rose black spot

Yeah it was, the question was which one of these is a fungal disease or something
Reply 16
Original post by dmayduck
I don't remember the question number but there was a multiple choice about which disease was a fungus and the answer (hopefully) was rose black spot

I remember that!! Yep I think that's right, I'll put it down for misc for the moment because I can't remember whereabouts it was either!
How did u guys all find the combined science (trilogy) biology today
I need to know if it was just me that struggled ahahha

the advanced information was so wrong wth
question 7.2 I think was why has the number of new HIV cases decreased. I wrote because people use contraception
(edited 1 year ago)
there was the burger one too (dont remember the number), and there was one 4-marker about how mitosis produces cells with identical DNA

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