OCR GCSE · Analysis & Prediction

2023 OCR GCSE Gateway Science - Biology A - J247 Past Paper: Analysis & Answers

A comprehensive analysis of the 2023 J247 Gateway Biology papers, highlighting key areas of student strength, common examiner pitfalls in cell respiration and genetics, and strategic advice for upcoming cohorts.

Updated: Jun 14, 2026

AnalysisSample paper
Difficulty 3.2/5
Total marks
180
Duration
210 mins
Most tested
—

Paper breakdown

J247/03: Paper 3 (Higher Tier): 90 marks · 105 minsJ247/04: Paper 4 (Higher Tier): 90 marks · 105 mins

Examiner insights

Official report

Common pitfalls

  • Confusing the functions of the nervous and endocrine systems, specifically underestimating the speed and duration of endocrine responses.
  • Incorrectly rounding mathematical calculations; failing to show clear working out for percentage increase/decrease questions.
  • Inability to distinguish between random errors (e.g. leaving excess fluid on plant tissue) and systematic errors (e.g. uncalibrated weighing scale).
  • Struggling with 'compare' command words on graphs, often quoting raw data points without stating the overall trends.

Misconceptions

  • Believing that plants do not respire, or that they only respire at night when they are not photosynthesising.
  • Confusing selective breeding (artificial selection) with genetic engineering, or describing cloning techniques when asked for selective breeding.
  • Assuming that antibiotics are effective against viral infections like Hepatitis A.
  • Believing that antibodies or lymphocytes 'engulf' pathogens (confusing them with phagocytes/phagocytosis).

Where marks are lost

  • Missing units or incorrect unit conversions, such as converting grams to kilograms or ml to ml/hour.
  • Failing to draw a continuous double outer membrane and clear internal cristae in scientific drawings of mitochondria.
  • In genetic cross diagrams, failing to state the gametes clearly or using non-matching letters for alleles.
  • In Level of Response (6-mark) questions, failing to cover all three bulleted prompts, which limits the response to Level 1 or 2 regardless of detail.

Estimated grade boundary

Updated: Jun 15, 2026

Source: OCR
GradeMarkPercentage
9133/18074%
8121/18067%
7109/18061%
691/18051%
573/18041%
455/18031%
346/18026%
Official grade boundaries published by OCR.

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