Biology A level 2020 paper 1,2,3

Which board do you need Bella[donna alkaloid]? [sorry to make your name interesting by converting it to a drug!]

Which board do you need Bella[donna alkaloid]? [sorry to make your name interesting by converting it to a drug!]

I would also like to have OCR Biology (H020) and Edexcel Biology B(2015) 2020 papers and marks schemes:-) Can someone help me find them? Thanks?

??

The plant Atropa belladonna contains the drug atropine, an antagonist at the parasympathetic muscarinic receptors at the end organ e.g. the synapse between fibres of the nasociliary branch of the oculomotor nerve [cranial III] and the constrictor pupillae muscle, whose stimulation results in miosis [narrowing of the pupil] in response to light [e.g.]; therefore atropine leads to mydriasis [larger pupli] and Victorian ladies used to gulp a little of this plant before going to parties in order to dilate their pupils and attract men lol, hence the name "belladona" [means beautiful woman]!