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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
£5.00 Preview RemovePlant Biology- Photosynthesis Lecture 1
These notes are taken per lecture. They are aimed at 2nd year university students. They include definitions, explanations and much more.
£3.75 Preview RemoveElements and Chemical Reactions Summary
Originally noted as part of AQA A Level Biology, but as it is a general topic the notes should fit all
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All About Global Warming, Its causes and Effects
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These are the best notes to learn the process of nutrition in plants in few minutes.
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2nd year Biomedical Science degree notes on Erythropoiesis and Haemoglobin Production
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Two specific fields of application of aseptic packaging technology. .. Advantages of Aseptic Packaging Technology: three main advantages of using aseptic packaging technology. Conventional Canning v/s Aseptic Packaging .. Aseptic Processing – Methodology: Sterilization of aseptic installations before operation (UHT unit, lines for products, sterile air and gases, filler and relevant machine zones) ... Sterilization of Products: Characteristics of the Heat Exchange Systems Used for Aseptic Processing of Liquids .. Sterilization of Aseptic Packaging Materials and Equipment .. Types of Aseptic Packs .. Composition of Tetra Pack Aseptic Cartons ..
£2.50 Preview RemoveAQA Biology AS Unit 2: Variety of Life
Complete set of revision notes for AQA Biology AS Unit 2: Variety of Life. Notes compiled from lessons and course textbook. These notes allowed the highest grade in a prestigious grammar school. I am currently undertaking a Biological degree at university.
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Research poster considering the effect of chytrid fungi on adult frogs of several species in east Africa.
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Well comprehensive notes on Bioactive Molecule from Plants II (Phenolic, Botanicals and Alkaloids)
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Singapore-Cambridge A Level Biology notes on Photosynthesis. Meant as a condensed revision on the topic during final revision. Based entirely on the Learning Objectives for the topic in the syllabus.
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£2.50 Preview RemoveBlueprint Series Lodish Molecular Cell Biology Complete Solution Chapter 8
Molecular Cell Biology by Harvey Lodish is a renowned book taught all over the world and it is liked by around 90% of students. This is the first-ever complete chapter-by-chapter solution of the book. I hope it will be of immense usefulness for those who want to have a very high-end result in their exams because sometimes it is not possible to go through the whole book.
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