7402 2 ms - Study guides, Class notes & Summaries

AQA A-level BIOLOGY 7402/2 Paper 2 June 2023 MS

AQA A-level BIOLOGY 7402/3 Paper 3 Question Paper + Mark scheme [MERGED] June 2022 *jun* IB/M/Jun22/E10 7402/3 For Examiner’s Use Question Mark 1 2 3 4 5 6 TOTAL Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions in Section A. • Answer one question from Secti...

aqa A-level BIOLOGY Paper 3 (7402/3) June 2023 Question Paper. 1. Describe how stimulation of a Pacinian corpuscle produces a generator potential. 2. Use Figure 1 to describe what is meant by the all-or-nothing principle. 3. On Figure 1, from 0.6 ms to 4.0 ms, no new generator potential could be produced. What is this time period called?. 4. A student investigated the effect of different sugars on the rate of respiration in yeast. Yeast normally respires glucose.Figure 2 shows the method she us...

AQA A-level BIOLOGY 7402/2 Paper 2 June 2023 MS

2023 AQA A-level BIOLOGY 7402/3 Paper 3 Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] Please write clearly in block capitals. Centre number Candidate number Surname Forename(s) Candidate signature I declare this is my own work. A-level BIOLOGY Paper 3 Wednesday 21 June 2023 Morning Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point ...

2 Section A Answer all questions in this section. You are advised to spend no more than 1 hour and 15 minutes on this section. 0 1 . 1 Describe how stimulation of a Pacinian corpuscle produces a generator potential. [3 marks] Scientists investigated the stimulation of a Pacinian corpuscle in the skin of a fingertip. The scientists applied two different pressures to the fingertip and recorded the changes in membrane potential of the Pacinian corpuscle’s sensory neurone. Figure 1 show...

This is the Mark scheme for the AQA A level Biology - Paper 2 June 2022 exam paper. The document is official and only sold for a limited time. It is locked on the AQA website. This is normally used as mock exams by your teachers !!

AQA A-level BIOLOGY 7402/3 Paper 3 Version: 1.0 Final *jun* IB/M/Jun23/E12 7402/3 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 TOTAL Wednesday 21 June 2023 Morning Time allowed: 2 hours Materials For this paper you must have: • a ruler with millimetre measurements • a scientific calculator. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions in Section A. • Answer one question from S...

AQA A-level BIOLOGY 7402/2 Paper 2 MS 2023 V1.0 Final