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OCR 2024 GCSE Combined Science A (Gateway Science) J250/07 Biology (Higher Tier) With Marking Scheme Merged
OCR 2024 GCSE Combined Science A (Gateway Science) J250/07 Biology (Higher Tier) With Marking Scheme Merged COMBINED SCIENCE A Oxford Cambridge and RSA Friday 10 May 2024 – Morning GCSE (9–1) Combined Science A (Gateway Science) J250/07 Biology (Higher Tier) Time allowed: 1 hour 10 minutes You must have: • a ruler (cm/mm) You can use: • a scientific or graphical calculator • an HB pencil * J H 2 5 0 0 7 * Please write clearly in black ink. Do not write in the barcodes. Centre number First name(s) Last name INSTRUCTIONS Candidate number • Use black ink. You can use an HB pencil, but only for graphs and diagrams. • Write your answer to each question in the space provided. If you need extra space use the lined pages at the end of this booklet. The question numbers must be clearly shown. • Answer all the questions. • Where appropriate, your answer should be supported with working. Marks might be given for using a correct method, even if your answer is wrong. INFORMATION • The total mark for this paper is 60. • The marks for each question are shown in brackets [ ]. • Quality of extended response will be assessed in questions marked with an asterisk (*). • This document has 24 pages. ADVICE • Read each question carefully before you start your answer. © OCR 2024 [601/8687/2] OCR is an exempt Charity DC (ST/CT) 320472/6 Turn over 2 Section A You should spend a maximum of 20 minutes on this section. Write your answer to each question in the box provided. 1 The table shows some information about insulin in the body. Which row shows the correct information about insulin? Organ that produces insulin Type of signal Target organ A liver chemical pancreas B liver electrical pancreas C pancreas chemical liver D pancreas electrical liver Your answer [1] 2 The length of a bacteria cell is 5.3 µm. What is the length of this cell in mm? (1 mm = 1000 µm) A 5.3 × 10–6 B 5.3 × 10–3 C 5.3 × 103 D 5.3 × 106 Your answer
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