GCSE Biology June 2008 Human Biology Answer Key

Version 1:1: 30/07/08 abc GCSE Science A (4461) Specification A BLY1AP, BL1ASF & BL1ASH Mark Scheme 2008 Examination – June Series This component is an objective test for which the following list indicates the correct answers used in marking the candidates’ responses. Further copies of this Mark Scheme are available to download from the AQA Website: www.aqa.org.uk Copyright © 2008 AQA and its licensors. All rights reserved. COPYRIGHT AQA retains the copyright on all its publications. However, registered centres for AQA are permitted to copy material from this booklet for their own internal use, with the following important exception: AQA cannot give permission to centres to photocopy any material that is acknowledged to a third party even for internal use within the centre. Set and published by the Assessment and Qualifications Alliance. The Assessment and Qualifications Alliance (AQA) is a company limited by guarantee registered in England and Wales (company number 3644723) and a registered charity (registered charity number 1073334). Registered address: AQA, Devas Street, Manchester M15 6EX Dr Michael Cresswell Director GenerGCSE SCIENCE A (4461)/BIOLOGY (4411) Objective Test Answer Key BLY1AP (Human Biology) Foundation Tier Question Key One A egg 1 B embryo 3 C fertilised egg 4 D sperm 2 Two A skin 3 B liver 4 C kidney 1 D gland 2 Three A alcohol 1 B cannabis 3 C carbon monoxide 2 D nicotine 4 Four A blinking 2 B cells in the eye 4 C insect 3 D muscle in the eye lid 1 Five A 540 cm3 3 B 1460 cm3 4 C 1500 cm3 1 D 2700 cm3 2 Six A antibiotics 2 B painkillers 4 C antibodies 3 D vaccines 1 A B C D Seven 2 3 4 1 Eight 2 2 2 2 Nine 3 1 3 1 GCSE SCIENCE A (4461)/BIOLOGY (4411) Objective Test Answer Key BLY1AP (Human Biology) Higher Tier Question Key One A antibiotics 2 B painkillers 4 C antibodies 3 D vaccines 1 Two A an impulse reaches the effector in the leg 4 B an impulse passes along a relay neurone 2 C an impulse passes along a sensory neurone to the central nervous system 1 D an impulse passes along a motor neurone 3 A B C D Three 2 2 2 2 Four 3 1 3 1 Five 3 2 3 3 Six 1 1 3 3 Seven 1 1 1 4 Eight 4 3 3 4 Nine 4 4 2 4