🇬🇧 United Kingdom • AQA, Pearson Edexcel & OCR100% Free & OpenGeneral Certificate of Secondary Education (Key Stage 4)
UK GCSE Hub (Years 10–11)
Achieve Grade 9 in GCSE Maths, English Language, Combined & Triple Science with AQA, Edexcel & OCR Past Papers
Exam Duration
Paper durations range from 1h 15m to 2h 00m
Score / Scale
Grades 9 to 1 (Grade 9 = Top A*, Grade 7 = Grade A, Grade 4 = Standard Pass, Grade 5 = Strong Pass)
Exam Format
National Written Examinations (Terminal Assessment in Year 11)
Subjects in Suite:
Units & Modules
Unit 1 • Paper 1 Core (~16% of Biology)
GCSE Biology: Cell Biology & Microscopy (Required Practical 1)
Eukaryotic and prokaryotic cells, animal vs plant cell specialization, microscopy calculations (Magnification = Image / Actual), cell division (mitosis), and stem cells.
🎥Curated Top YouTube Masterclass
Runtime: 11 MinsGCSE Biology Revision "Required Practical 4: Food Tests"
Creator: Freesciencelessons
🔑 High-Yield Concepts & Formulas for this Unit
- Magnification Formula: M = I / A (ensure Image and Actual size share identical units, e.g., micrometers μm)
- Prokaryotic cells (bacteria) lack a nucleus and store DNA in a single circular loop and plasmids
- Mitosis stages: DNA replication, chromosome alignment along equator, separation, and cytokinesis
- Diffusion, Osmosis, and Active Transport (active transport moves against concentration gradient and requires ATP)
Topics & Learning Objectives
Cell Structure and Organelles
Functions of nucleus, mitochondria, ribosomes, chloroplasts, and cell wall.
Required Practical 1: Light Microscopy
Preparing an onion cell slide using iodine stain and calculating cell length.