2023 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/1H Higher Tier Paper 1 Life and Environmental Sciences Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]

2023 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/1H Higher Tier Paper 1 Life and Environmental Sciences Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] GCSE COMBINED SCIENCE: SYNERGY H Higher TierPaper 1 Life and Environmental Sciences Tuesday 16 May 2023 Morning Time allowed: 1 hour 45 minutes Materials For this paper you must have: a ruler a protractor a scientific calculator the periodic table (enclosed) the Physics Equations Sheet (enclosed). Instructions Use black ink or black ball-point pen. Pencil should only be used for drawing. Fill in the boxes at the top of this page. Answer all 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). Do all rough work in this book. Cross through any work you do not want to be marked. In all calculations, show clearly how you work out your answer. For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 TOTAL Information The maximum mark for this paper is 100. The marks for questions are shown in brackets. You are expected to use a calculator where appropriate. You are reminded of the need for good English and clear presentation in your answers. (JUN2384651H01) 8465/1H G/LM/Jun23/E8 2 0 1This question is about the blood and the circulatory system. 0 1 . 1Give the functions of red blood cells, white blood cells and platelets. [3 marks] Red blood cells ___________________________________________________________________ ___________________________________________________________________________________ White blood cells _________________________________________________________________ ___________________________________________________________________________________ Platelets __________________________________________________________________________ ___________________________________________________________________________________ Figure 1 shows a human heart. Figure 1 B C D A Right atrium Do not write outside the box (02) G/Jun23/8465/1H 3 0 1 . 2 Draw one arrow on Figure 1 to show the movement of the blood between the left atrium and the left ventricle. [1 mark] 0 1 . 3Which blood vessel carries blood from the lungs into the heart? [1 mark] Tick ( ) one box. A B C D 0 1 . 4 Which blood vessel is the aorta? [1 mark] Tick ( ) one box. A B C D 0 1 . 5 What structures prevent blood flowing in the wrong direction through the heart? [1 mark] _ __________________________________________________________________________________ Question 1 continues on the next page Do not write outside the box Turn over U (03) G/Jun23/8465/1H 4 0 1 . 6 Heart muscle cells obtain oxygen from the blood. Which blood vessels exchange oxygen with heart muscle cells? [1 mark] Tick ( ) one box. Arteries Capillaries Veins 0 1 . 7 Heart rate is controlled by a group of cells called the pacemaker. Where is the pacemaker in the heart? [1 mark] Tick ( ) one box. Left atrium Left ventricle Right atrium Right ventricl