Pearson Edexcel International GCSE Human Biology (4HB1): syllabus, papers and marking

The pre-medical choice in several Pakistani Edexcel schools. Marked to the same specific marking points as 4BI1, with the comprehension questions on Paper 2 handled separately.

Specification Issue 2 (September 2024), first teaching 2017 · June and November series · grades 9–1

IGCSE Human Biology: where the marks go

Edexcel International GCSE Human Biology (4HB1) is two 1 h 45 min, 90-mark papers across twelve topics, mixing multiple-choice, short-answer, calculation and extended open-response questions; Paper 2 adds comprehension questions. Pearson’s reports say candidates often lose marks on precision: elbow joint called a ball and socket, bonds called polypeptide when they are hydrogen bonds, and “amount” written where “volume” is needed.

Our papers are original and marked to the same specific marking points as 4BI1. Marking returns the mark points awarded and missed, with the exact missing term named, and the working for the calculation questions is checked step by step.

How we mark a real script

Paper structure and what we mark

PaperTimeMarksWeightQuestions
Paper 1 — Paper 11 h 45 min9050%Multiple-choice, short-answer, calculations and extended open-response across all twelve topics
Paper 2 — Paper 21 h 45 min9050%As Paper 1, plus comprehension questions

Syllabus outline

  1. Cells, tissues and biological molecules
  2. Movement of substances
  3. Bones, muscles, joints and coordination
  4. Nutrition, respiration and gas exchange
  5. Internal transport and homeostasis
  6. Reproduction, heredity and disease

How each paper is marked here

Where IGCSE Human Biology candidates lose marks

  1. Structures confused — Elbow as ball and socket, ligaments for tendons, or the cell membrane labelled as the cell wall.
  2. Magnification with the wrong unit conversion — Millimetres and micrometres mixed up give answers a thousand times out.
  3. Median and mean confused — Calculating the mean when the median is asked loses both method and accuracy marks.
  4. “Amount” instead of “volume” — Controlled variables need the measurable quantity; “amount” does not earn the mark.
  5. Data quoted without a trend — Graph and table answers lose marks when figures are listed without describing the overall pattern.

Sample papers, mark schemes and marked reports for IGCSE Human Biology

Sample material

Questions teachers ask

How is it different from 4BI1?
Human Biology covers the human body across twelve topics; 4BI1 covers organisms in general, and the two share a marking style.
Which sitting?
Pearson offers 4HB1 in June and November.
Are diagrams original?
Yes. Every diagram is drawn for the paper.
Is this official Pearson Edexcel marking?
No. Pearson Edexcel International marks the real exam. This is examiner-style marking of mocks and homework for IGCSE Human Biology. Only you see the marking, and you decide what reaches the student.
Do you reproduce past-paper questions?
No. Every 4HB1 paper here is original and written to the specification issue 2 (september 2024), first teaching 2017, in the same structure as the real papers shown above.
Which papers are marked?
None yet are marked question by question. Practical exams sat at the centre are not marked here.
How is the next paper chosen?
From the marks a student lost: the concepts behind them are ranked by marks dropped, and the new paper weights those topics. It is the same syllabus and structure, with new questions.
When are the exams?
June and November series. Grades 9–1.

Other Pearson Edexcel International GCSE courses

Start marking Human Biology scripts · See a real marked script