AQA · GCSE · BIOLOGY
Triple Science Paper 1
Higher Tier Complete Study Guide · 2026
BOARD LEVEL TIER YEAR
AQA GCSE Higher 2026
Comprehensive revision guide for AQA GCSE Biology Triple Science Paper 1
(Higher Tier).
Topics 1–4: Cell Biology, Organisation, Infection & Response, Bioenergetics.
, 📋 Paper 1 Topics & Key Content
Topics 1–4 AQA GCSE Biology · Paper 1 (H)
Topic 1: Cell Biology — Cell Topic 1: Microscopy
Structure
Magnification = image size ÷ real size.
Eukaryotic cells (plant and animal)
Light microscopes: use light, magnify up to
have a cell membrane, cytoplasm, and
×2000, lower resolution — can view living
genetic material enclosed in a nucleus. cells.
Prokaryotic cells (bacteria) are much
Electron microscopes: use electrons,
smaller; cytoplasm and cell membrane
magnify up to ×2,000,000, higher
surrounded by a cell wall; genetic material
resolution — can view sub-cellular
is a single DNA loop and may include
structures.
plasmids.
Resolution is the ability to distinguish
Animal cell sub-cellular structures: nucleus,
between two points.
cytoplasm, cell membrane, mitochondria,
ribosomes.
Plant cell additional structures:
chloroplasts, permanent vacuole, cell wall
(cellulose).
Triple Science Paper 1
Higher Tier Complete Study Guide · 2026
BOARD LEVEL TIER YEAR
AQA GCSE Higher 2026
Comprehensive revision guide for AQA GCSE Biology Triple Science Paper 1
(Higher Tier).
Topics 1–4: Cell Biology, Organisation, Infection & Response, Bioenergetics.
, 📋 Paper 1 Topics & Key Content
Topics 1–4 AQA GCSE Biology · Paper 1 (H)
Topic 1: Cell Biology — Cell Topic 1: Microscopy
Structure
Magnification = image size ÷ real size.
Eukaryotic cells (plant and animal)
Light microscopes: use light, magnify up to
have a cell membrane, cytoplasm, and
×2000, lower resolution — can view living
genetic material enclosed in a nucleus. cells.
Prokaryotic cells (bacteria) are much
Electron microscopes: use electrons,
smaller; cytoplasm and cell membrane
magnify up to ×2,000,000, higher
surrounded by a cell wall; genetic material
resolution — can view sub-cellular
is a single DNA loop and may include
structures.
plasmids.
Resolution is the ability to distinguish
Animal cell sub-cellular structures: nucleus,
between two points.
cytoplasm, cell membrane, mitochondria,
ribosomes.
Plant cell additional structures:
chloroplasts, permanent vacuole, cell wall
(cellulose).
