Qa a level biology 7 Study guides, Class notes & Summaries

AQA AS BIOLOGY 7401/1 Paper 1 / AQA A LEVEL BIO QUESTIONS Question Paper & Mark scheme Merged June 2023 VERIFIED Q1.(a) Describe how you would test a piece of food for the presence of lipid. ....................................................................................................................... . ....................................................................................................................... . .........................................................

AQA A Level Biology 7402/3 Paper 3 June 2024 Question Paper

AQA A Level Biology 7402/1 Paper 1 June 2024 Question Paper

AQA A Level Biology 7402/2 Paper 2 June 2024 Question Paper

AQA A Level Biology 7402/3 Paper 3 June 2024 Mark Scheme

AQA A Level Biology 7402/2 Paper 2 June 2024 Mark Scheme

AQA A Level Biology 7402/1 Paper 1 June 2024 Mark Scheme

AQA A level BIOLOGY 7402/3 Paper 3 Mark scheme June 2023. (There are) stretch-mediated sodium ion channels (in the membrane); 2. (Increased pressure) deforms/changes (sensory neurone/axon) membrane/lamella(e) OR (Increased pressure) deforms/changes sodium ion channels; 3. Sodium ion channels open; 4. Sodium ions diffuse in; 5. Depolarisation (leading to generator potential); 3 max (3 x AO1) 1. 2. 3. or 4. Accept Na+ Max 2 if only reference to sodium and not sodium ions 4. Accep...

AQA A level BIOLOGY 7402/3 Paper 3 Mark scheme June 2023

AQA A level BIOLOGY 7402/3 Paper 3 June 2023 official QUESTION PAPER