Biology > AQA Question Papers > A-level BIOLOGY Paper 2,. EXAM QUESTIONS AND ANSWERS,. 100% PROVEN PASS RATE. (All)

A-level BIOLOGY Paper 2,. EXAM QUESTIONS AND ANSWERS,. 100% PROVEN PASS RATE.

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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. • You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. • If you need extra space for your answer(s), use the lined pages at the end of this book. Write the question number against your answer(s). • Show all your working. • Do all rough work in this book. Cross through any work you do not want to be marked. Information • The marks for the questions are shown in brackets. • The maximum mark for this paper is 91. 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 22 *02* IB/M/Jun20/7402/2 Do not write outside the Answer all questions in the spaces provided. box 0 1 The iris in the human eye is a muscular structure. The iris changes the size of the pupil. Figure 1 shows the muscles in the iris. Figure 1 0 1 . 1 Suggest and explain how the interaction between the muscles labelled in Figure 1 could cause the pupil to constrict (narrow). [Show More]

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