AS Biology A (Salters-Nuffield) - Edexcel

1 AS. Biology A. (Salters-Nuffield). Sample Assessment Materials Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A. (Salters-Nuffield) (8BN0). First teaching from September 2015. First certification from 2016 Issue 1. Pearson Edexcel Level 3. Advanced Subsidiary GCE in Biology A. (Salters-Nuffield) (8BN0). Sample Assessment Materials First certification 2016. Edexcel , BTEC and LCCI qualifications Edexcel , BTEC and LCCI qualifications are awarded by Pearson, the UK's largest awarding body offering academic and vocational qualifications that are globally recognised and benchmarked. For further information, please visit our qualification websites at , or Alternatively, you can get in touch with us using the details on our contact us page at About Pearson Pearson is the world's leading learning company, with 40,000 employees in more than 70 countries working to help people of all ages to make measurable progress in their lives through learning.

2 We put the learner at the centre of everything we do, because wherever learning flourishes, so do people. Find out more about how we can help you and your learners at: References to third party material made in these sample assessment materials are made in good faith. Pearson does not endorse, approve or accept responsibility for the content of materials, which may be subject to change, or any opinions expressed therein. (Material may include textbooks, journals, magazines and other publications and websites.). All information in this document is correct at the time of publication. Original origami artwork: Mark Bolitho Origami photography: Pearson Education Ltd / Naki Kouyioumtzis ISBN 978 1 446 91452 6. All the material in this publication is copyright Pearson Education Limited 2014.

3 Contents 1 Introduction 1. 2 General marking guidance 3. 3 Paper 1: Lifestyle, Transport, Genes and Health 5. 4 Paper 1 Mark Scheme 27. 5 Paper 2: Development, Plants and the Environment 45. 6 Paper 2 Mark Scheme 71. Introduction The Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A (Salters-Nuffield) is designed for use in schools and colleges. It is part of a suite of GCE qualifications offered by Pearson. These sample assessment materials have been developed to support this qualification and will be used as the benchmark to develop the assessment students will take. Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A (Salters-Nuffield) 1. Sample Assessment Materials Issue 1 December 2014 Pearson Education Limited 2014.

4 2 Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A (Salters-Nuffield). Sample Assessment Materials Issue 1 December 2014 Pearson Education Limited 2014. General marking guidance All candidates must receive the same treatment. Examiners must mark the last candidate in exactly the same way as they mark the first. Mark schemes should be applied positively. Candidates must be rewarded for what they have shown they can do rather than be penalised for omissions. Examiners should mark according to the mark scheme not according to their perception of where the grade boundaries may lie. All the marks on the mark scheme are designed to be awarded. Examiners should always award full marks if deserved, if the answer matches the mark scheme.

5 Examiners should also be prepared to award zero marks if the candidate's response is not worthy of credit according to the mark scheme. Where some judgement is required, mark schemes will provide the principles by which marks will be awarded and exemplification/indicative content will not be exhaustive. When examiners are in doubt regarding the application of the mark scheme to a candidate's response, a senior examiner must be consulted before a mark is given. Crossed-out work should be marked unless the candidate has replaced it with an alternative response. Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A (Salters-Nuffield) 3. Sample Assessment Materials Issue 1 December 2014 Pearson Education Limited 2014. 4 Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A (Salters-Nuffield).

6 Sample Assessment Materials Issue 1 December 2014 Pearson Education Limited 2014. Write your name here Surname Other names Pearson Edexcel Centre Number Candidate Number Level 3 GCE. Biology A. (Salters Nuffield). Advanced Subsidiary Paper 1: Lifestyle, Transport, Genes and Health Sample Assessment Material for first teaching September 2015 Paper Reference Time: 1 hour 30 minutes 8BN0/01. You may need a ruler, a pencil and a calculator. Total Marks Instructions Use black ink or ball-point pen. centrethe Fill in boxes at the top of this page with your name, number and candidate number. Answer all questions. Show your working in any calculation questions and include units in your answer where appropriate. Answer the questions in the spaces provided there may be more space than you need.

7 You may use a scientific calculator. to structure your In questions marked with an asterisk (*), marks will be awarded for your ability answer logically, showing how the points that you make are related or follow on from each other where appropriate. Information The total mark for this paper is 80. The marks for each question are shown in brackets use this as a guide as to how much time to spend on each question. Advice Read each question carefully before you start to answer it. Checkanswer Try to every question. your answers if you have time at the end. Turn over S47561A. 2015 Pearson Education Ltd. *S47561A0124*. 1/1/1/1/1/. Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A (Salters-Nuffield) 5. Sample Assessment Materials Issue 1 December 2014 Pearson Education Limited 2014.

8 Answer ALL questions. Write your answers in the spaces provided. Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then mark your new answer with a cross . 1 Cell membranes are involved in the transport of molecules. The diagram shows the structure of a cell membrane. C. A B D. (a) Which letter in the diagram labels a phospholipid? (1). A. B. C. D. (b) Which of the following statements is true about a phospholipid? (1). A it has a hydrophobic tail of three fatty acids B it has a hydrophilic tail of three fatty acids C it has a hydrophobic tail of two fatty acids D it has a hydrophilic tail of two fatty acids 2. 6. *s47561A0224*. Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A (Salters-Nuffield).

9 Sample Assessment Materials Issue 1 December 2014 Pearson Education Limited 2014. (c) Describe how the structure labelled B is involved in passive transport. (3).. (Total for Question 1 = 5 marks). 3. Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A (Salters-Nuffield). Sample Assessment Materials Issue 1 December 2014 Pearson Education Limited 2014 *s47561A0324* Turn over 7. 2 A student investigated the effect of caffeine on human heart rate. Three males of the same age were given cups of coffee containing caffeine. Their heart rates were measured 10 minutes after drinking the coffee. Two hours later they were given cups of coffee with no caffeine and after 10 minutes their heart rates were measured. The results are shown in the table.

10 Heart rate / beats min 1. Male Coffee containing caffeine Coffee with no caffeine 1 75 72. 2 78 71. 3 70 70. Mean sd 74 4 71 1. (a) The student concluded that caffeine increases human heart rate. Analyse the data to explain why these results may not support the conclusion. (3).. 4. 8. *s47561A0424*. Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A (Salters-Nuffield). Sample Assessment Materials Issue 1 December 2014 Pearson Education Limited 2014. (b) Describe how this investigation could be improved. (3).. (Total for Question 2 = 6 marks). 5. Pearson Edexcel Level 3 Advanced Subsidiary GCE in Biology A (Salters-Nuffield). Sample Assessment Materials Issue 1 December 2014 Pearson Education Limited 2014 *s47561A0524* Turn over 9.