AQA-BL1HP-QP-JUN12 - Centre Number For Examiners Use Candidate Number Surname Other Names Examiners Initials Candidate Signature Question General

AQA-BL1HP-QP-JUN12 - Centre Number For Examiners Use...

This preview shows page 1 - 3 out of 20 pages.

General Certificate of Secondary Education Higher Tier June 2012 Science A BL1HP Unit Biology B1 Biology Unit Biology B1 Tuesday 12 June 2012 9.00 am to 10.00 am For this paper you must have: a ruler. You may use a calculator. Time allowed 1 hour 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. Do all rough work in this book. Cross through any work you do not want to be marked. Information The marks for questions are shown in brackets. The maximum mark for this paper is 60. You are expected to use a calculator where appropriate. You are reminded of the need for good English and clear presentation in your answers. Question 3 should be answered in continuous prose. In this question you will be marked on your ability to: – use good English – organise information clearly – use specialist vocabulary where appropriate. Advice In all calculations, show clearly how you work out your answer. BL1HP H (JUn12BL1Hp01) G/K83139 6/6/6/6 Centre Number Candidate Number Surname Other Names Candidate Signature For Examiner’s Use Examiner’s Initials Question Mark 1 2 3 4 5 6 7 8 TOTAL
Image of page 1
2 Do not write outside the box (02) G/K83139/Jun12/BL1HP Answer all questions in the spaces provided. 1 Scientists at a drug company developed a new pain-killing drug, drug X . 1 (a) Painkillers do not cure infectious diseases. Why? ............................................................................................................................................ (1 mark) 1 (b) The scientists compared drug X with two other pain-killing drugs, drug A and drug B . In their investigation the scientists: chose 600 volunteers. The volunteers were all in pain gave 200 of the volunteers a standard dose of drug A gave 200 of the volunteers a standard dose of drug B gave 200 of the volunteers a standard dose of drug X . Over the next seven hours the volunteers recorded how much pain they felt. To get valid results the three groups of volunteers should be matched for as many factors as possible. Suggest two of the factors that should be matched. ............................................................................................................................................ ............................................................................................................................................ (2 marks) 1 (c) The graph shows the results of the investigation.
Image of page 2
Image of page 3

You've reached the end of your free preview.

Want to read all 20 pages?

  • Spring '16
  • nour
  • Biology, RNA, Pastpaperquestions AQA Science, .........

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes