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GCSEScienceOCRCombined Science A (Gateway)BiologyExam Questions

OCR GCSE Combined Science A (Gateway): Biology
Exam Questions By Topic

Exam code: J250

OCR GCSE Combined Science A (Gateway): Biology exam questions and answers, organised by topic. Downloadable PDFs written by teachers and examiners.

Cell Level Systems
2 hours59 questions
- Cell Structures
  Light Microscopes, Cell Structure, Electron Microscopes
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- What Happens in Cells (& What do Cells Need?)
  DNA Structure, The Mechanism of Enzyme Action
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- Respiration
  Respiration is a Chemical Process, Aerobic & Anaerobic Respiration, Biological Molecules, Tests for Biological Molecules
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- Photosynthesis
  Photosynthetic Organisms as Producers, The Effect of 3 Factors on Photosynthesis, Limiting Factors - Photosynthesis
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Scaling Up
3 hours57 questions
- Supplying the Cell
  Cellular Transport - Diffusion & Osmosis, Cellular Transport - Active Transport, Mitosis & the Cell Cycle, Cell Differentiation, Stem Cells in Animals & Plants, Embryonic & Adult Stem Cells in Animals
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- The Challenges of Size
  Surface Area: Volume Ratio & Transport, Transport Into & Out of Organisms, The Heart, Blood Vessels, Blood Composition, Transport of Water & Mineral Ions in Plants, Transpiration & Translocation, Xylem & Phloem, Affecting Water Uptake by a Plant
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Organism Level Systems
2 hours28 questions
- Coordination & Control – the Nervous System
  The Nervous System - Structure, Generating a Nervous Response, The Reflex Arc
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- Coordination & Control – the Endocrine System
  Hormonal Control, Hormones in Human Reproduction, Four Hormones in the Menstrual Cycle, Contraception, Hormones to Treat Infertility
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- Maintaining Internal Environments
  Constant Internal Environment, Insulin in Blood Sugar Control, Glucagon in Blood Sugar Control, Responses to Extremes
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Community Level Systems
50 mins16 questions
- Ecosystems
  The Cycling of Materials, The Carbon Cycle, Levels of Organisation in an Ecosystem, Abiotic & Biotic Factors, Interdependence & Competition
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Genes, Inheritance & Selection
2 hours53 questions
- Inheritance
  The Genome & Genetics, Variation, Sexual Reproduction, Asexual Reproduction, Inheritance
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- Natural Selection & Evolution
  Genetic Variation Within a Population, Evolution Through Natural Selection, Classification
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Global Challenges
4 hours79 questions
- Monitoring & Maintaining the Environment
  The Distribution & Abundance of Organisms, Human Interactions Within Ecosystems, Maintaining Biodiversity
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- Feeding the Human Race
  Selective Breeding of Food Products, Genetic Engineering, The Process of Genetic Engineering, Biotechnology & Human Population
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- Monitoring & Maintaining Health
  Health & Disease: Disease Types, Communicable Diseases, White Blood Cells & Platelets, Non-Specific Defences, The Human Immune System, Vaccines Against Disease, Developing New Medicines, Non-Communicable Human Diseases, Stem Cells in Medicine, Gene Technology in Medicine
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Practical Skills
3 hours31 questions
- Practical Skills
  Practical - Using Light Microscopes to View Cells, Practical - DNA Extraction, Practical - Sampling Techniques - Quadrats, Practical - Investigating Enzymatic Reactions, Practical - Investigating Photosynthesis, Practical - Using a Potometer, Practical - Measurement of Stomatal Density, Practical - Aseptic Technique, Practical - Surface Area: Volume Ratio, Practical - Investigating Osmosis
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