Edexcel IGCSE Biology - IGCSE Science Courses

3y ago
29 Views
4 Downloads
557.14 KB
16 Pages
Last View : 19d ago
Last Download : 2m ago
Upload by : Julius Prosser
Transcription

Write your name hereSurnameOther namesCentre NumberCandidate NumberEdexcel IGCSEBiologyUnit: 4BI0Paper: 2BTuesday 7 June 2011 – AfternoonTime: 1 hourPaper Reference4BI0/2BYou do not need any other materials.Total MarksInstructionsblack ink or ball-point pen. UseFillinboxes at the top of this page with your name, centrethenumber and candidate number.all questions. Answerthe questions in the spaces provided Answer– there may be more space than you need. Show all the steps in any calculations and state the units.Informationtotal mark for this paper is 60. Thefor each question are shown in brackets –Theusemarksthis as a guide as to how much time to spend on each question.Adviceeach question carefully before you start to answer it. Readan eye on the time. KeepWriteanswers neatly and in good English. Try toyourevery question. Checkanswer your answers if you have time at the end.Turn overP38725RA 2011 Edexcel Limited.1/1/1/1/1/1/*P38725RA0116*

Answer ALL questions.1 Read the passage below. Use the information in the passage and your ownknowledge to answer the questions that follow.Artificial heart pump gives life to dying patients1 In June 2000, a 61-year-old man in the United Kingdom became the first personto have a permanent artificial heart pump fitted. Before the pump was fitted, theman was told that he had only a few weeks left to live. However, the pump hastaken on the work of his heart: taking blood from the heart and delivering it to5 the rest of the body. Pumps like these could be a possible alternative to hearttransplants, which are usually performed on patients whose heart has begun tofail.The operation to insert the pump took several hours but the surgeons were verypleased with the speed of the man’s recovery. During the operation, the pump10 was fitted into the left ventricle of the man’s heart. This heart chamber providesmuch of the pumping power of the heart when it contracts.The pump is powered by batteries, which are usually carried around the patient’swaist. The batteries are connected to the pump by wires which enter the body atthe back of the skull. The wires then pass down through the neck, into the chest15 cavity and connect to the pump in the heart. The batteries are rechargeable andneed changing every eight hours.The surgeon who performed this operation wrote about it in a medical journal.He said that the pump had helped to lower the patient’s blood pressure and haddone no damage to his red blood cells. He also reported that, six weeks after the20 operation, the patient’s heart and liver were working much better than beforethe procedure and that the man was able to take exercise. As the patient takesexercise, he can change the speed of the pump.The important medical advance with this pump is that it is fitted permanently.Previous artificial heart pumps had to be replaced every few months and25 were also much larger and noisier. The new pumps give doctors hope thatthis treatment could solve the problem of a shortage of hearts available fortransplants. The heart surgeon said, ‘Currently, the outlook for patients who arenot able to have a transplant is poor. Our laboratory experience and the resultfrom this first operation with a small, silent intraventricular device suggests a30 potential alternative for many patients.’2*P38725RA0216*

(a) Name two of the blood vessels that carry blood away from the heart.(2)1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(b) Suggest why the batteries for the heart pump are placed outside the body(lines 12 and 13).(1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(c) Describe how the blood in the left side of the heart differs from the blood in theright side of the heart.(2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(d) Explain why the patient might need to change the speed of the pump (line 22).(2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(e) Explain why some patients are ‘not able to have a transplant’ (line 28).(1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .*P38725RA0316*3Turn over

(f ) Suggest what is meant by the term intraventricular (line 29).(1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(g) Suggest two advantages of using the new artificial heart pump compared toprevious artificial heart pumps.(2)1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(Total for Question 1 11 marks)4*P38725RA0416*

BLANK PAGE*P38725RA0516*5Turn over

2 The diagram shows a section through the human eye.CBA(a) Name the structures labelled A, B and C.(3)A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(b) Explain the changes that take place in structures B and C when a person focuseson a nearby object.(2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Edexcel IGCSE Biology Unit: 4BI0 Paper: 2B Tuesday 7 June 2011 – Afternoon Time: 1 hour You do not need any other materials. 4BI0/2B Instructions Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name, centre number and candidate number. Answer all questions. Answer the questions in the spaces .

Related Documents:

IGCSE ARABIC for Native Arabic Speakers - Edexcel 11 GCSE ART & DESIGN - Edexcel 13 IGCSE BUSINESS STUDIES - Cambridge 15 IGCSE ECONOMICS - Cambridge 17 IGCSE COMPUTER SCIENCE - Cambridge 19 GCSE DRAMA - Edexcel 20 IGCSE ENGLISH LANGUAGE - Cambridge 22 IGCSE ENGLISH LITERATURE - Edexcel 22 IGCSE GEOGRAPHY - Edexcel 25

IGCSE First Language English 12 IGCSE World Literature 13 IGCSE English as a Second Language 14 . IGCSE Business Studies 19 IGCSE Global Perspectives 21 IGCSE Geography 22 IGCSE History 23 IGCSE Sciences 24 IGCSE Cambridge Mathematics Extended & Core 26 . At BISP, Year 12 and 13 (Key Stage Five) students study the IB Diploma Programme (IBDP .

animation, biology articles, biology ask your doubts, biology at a glance, biology basics, biology books, biology books for pmt, biology botany, biology branches, biology by campbell, biology class 11th, biology coaching, biology coaching in delhi, biology concepts, biology diagrams, biology

University of Cambridge International Examinations London GCE AS/A-Level / IGCSE / GCSE Edexcel International. 6 Examination Date in 2011 Cambridge IGCSE Oct/Nov X 9 Cambridge GCE / May/Jun 9 9 London GCE London GCSE May/Jun 9 X Chinese London IGCSE Jan X 9 Cambridge IGCSE / May/Jun 9 9 London IGCSE London GCE Jan 9 9 Cambridge GCE Oct/Nov X 9 Private Candidates School Candidates Exam Date. 7 .

Edexcel IGCSE 4EA1 English Language A & Edexcel IGCSE 4ET1 English Literature MATHEMATICS All pupils follow the Edexcel IGCSE Mathematics course, aimed at the higher level of entry. The course fuses an understanding of numbers, algebra, geometry and statistics. Pupils learn

Pearson Edexcel Price List IGCSE and GCE A level November 2020 Bangladesh. IGCSE Subject Name Subject / Unit Name Unit Code Bangladesh Edexcel Pricing (Standard) (BDT) Bangladesh Edexcel . ENGLISH LITERATURE ENGLIS

Cambridge IGCSE Biology . Clegg, J and Smith, M (Collins Educational, 2013) Heinemann IGCSE Biology . Jones, M (Heinemann, 2009) Cambridge IGCSE Biology . Mackean, D G and Hayward, D (Hodder Education, 2014) IGCSE Biology Revision Guide. Pickering, R (Oxford University Press, 2014)

Sometimes referred to as a ‘mini-stroke’ or ‘warning stroke’ – an event is defined as a TIA if the symptoms resolve within 24 hours. . 1 in 8 strokes are fatal within the first 30 days. 1 in 4 strokes are fatal within a year. Stroke is the fourth single largest cause of death in the UK and second in the world. By the age of 75, 1 in 5 women and 1 in 6 men will have .