AQA GCSE Biology Paper 1 (Higher Tier) 2022

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Hi guys,

If you can agree what the questions and answers are below I can make sure I keep this post updated :smile:

(edited 11 months ago)

Reply 1

TriplexA

18

@Mythical Pingu am I doing right to tag you in this :smile:

Original post by TriplexA

@Mythical Pingu am I doing right to tag you in this :smile:

Si but he is off today so I'm covering :smile:

Thanks! If people do jot down answers we can promote this, but depends if it gets busy :smile:

last question?

1st question : nucleus function: contains cells genetic information
mitochondria: site of aerobic respiration
cell membrane: controls what goes in and out of cells

Reply 5

fluffylion76

4

Original post by Nibblet27

Hi guys,

If you can agree what the questions and answers are below I can make sure I keep this post updated :smile:

what did everyone put for the metabolism question and the one about respiratory systems?

Reply 6

ISA1

4

Original post by nooooooobut

last question?

remind it to me please

Reply 7

potatoes25

12

Original post by fluffylion76

what did everyone put for the metabolism question and the one about respiratory systems?

for metabolism i said the one with a greater surface area loses more heat to the surroundings, so it has to respire more to maintain a constant body temp, which means the total sum of all reactions is greater. idk if thats right though

Reply 8

hoolahups

1

Original post by ISA1

remind it to me please

the last question was “how do monoclonal antibodies help a person with HIV to not develop aids” or something along those lines and it had a diagram on the HIV antigens and body cells

Reply 9

ISA1

4

Original post by hoolahups

the last question was “how do monoclonal antibodies help a person with HIV to not develop aids” or something along those lines and it had a diagram on the HIV antigens and body cells

something along the lines of
we attach a radioactive or toxic substance to the monoclonal antibodies and because they are specific it will taget only the HIV antigen destroying it. so HIV will not go on to develop into AIDS

Reply 10

CBrocks294

1

Original post by hoolahups

the last question was “how do monoclonal antibodies help a person with HIV to not develop aids” or something along those lines and it had a diagram on the HIV antigens and body cells

I got something along the lines of:- monoclonal antibodies bind to antigens- antigens cannot bind at the human cell binding sites- genetic information cannot pass into human cell- person cannot be infected

Reply 11

CBrocks294

1

Original post by ISA1

something along the lines of
we attach a radioactive or toxic substance to the monoclonal antibodies and because they are specific it will taget only the HIV antigen destroying it. so HIV will not go on to develop into AIDS

I'm going to suggest that because of the diagram it wanted the idea of blocking the antigens. Radioactive and toxic substances are generaly a cancer treatment which was taken off the exam, however I could see both being on the markscheme so I dont know

Reply 12

username5944309

11

Original post by CBrocks294

I'm going to suggest that because of the diagram it wanted the idea of blocking the antigens. Radioactive and toxic substances are generaly a cancer treatment which was taken off the exam, however I could see both being on the markscheme so I dont know

I put using monoclonal antibodies specific to HIV would destroy them as it binds to the antigens on the surface so they can't attach to the human cell and enter it therefore it can't reproduce so the immune system isn't damaged further

Reply 13

uglyplushy

11

Original post by hoolahups

the last question was “how do monoclonal antibodies help a person with HIV to not develop aids” or something along those lines and it had a diagram on the HIV antigens and body cells

for this one, i put
monoclonal antibodies bind to the antigens on the surface of the virus as they are specific to HIV due to their complimentary shape; therefore, it makes it easier for phagocytes to engulf the virus and destroy it without harming human body cells

Reply 14

gcse2022student

1

straight or curved line for graph q?

Reply 15

gcse2022student

1

for the one about HIV and unequal numbers for men and women could you say: cases per 1000 men/woman??

Reply 16

username5698516

14

Original post by gcse2022student

for the one about HIV and unequal numbers for men and women could you say: cases per 1000 men/woman??

I put % of population with HIV

Reply 17

username5698516

14

Can u pls make a document or smth with the questions and I can pm or reply w answers ty x

Original post by Nibblet27

Hi guys,

If you can agree what the questions and answers are below I can make sure I keep this post updated :smile:

Reply 18

17THAVAA

1

For the fungal dividing did any of you get 16

Reply 19

hduashduahd

1

Did anyone write about antiretroviral drugs for the HIV question?
I wrote about attaching the monoclonal antibody to the antiretroviral drug as they stop HIV from replicating inside body so they don’t damage immune system, which stops it from turning into AIDS

AQA GCSE Biology Paper 1 (Higher Tier) 2022

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