Why This Guide Works

Evidence-led. No fluff. Every claim links to public documents or established provider summaries.

What the Syllabus Says (And Why You Should Care)

The official Cambridge specification for 2026–2028 outlines assessment across Core and Extended content with strong emphasis on anatomy, physiology, ecology, and biological processes, which dominate structured and data-response questions.

Source: Cambridge 2026–2028 syllabus PDF

Independent summaries highlight recurring high-mark areas such as reproduction, transport, nutrition, and ecology:

Save My Exams spec overview | MicrobeNotes syllabus page

Reproduction (Topic 16)

High-frequency topic with diagrams and hormone graphs.

Syllabus-backed focus

• Hormonal control of menstrual cycle (FSH, LH, oestrogen, progesterone)
• Placenta exchange and surface area principles
• Plant pollination, fertilisation, seed/fruit formation
• Source: Cambridge syllabus
• Provider frequency indicators: Save My Exams

Ecology & Environmental Biology (Topics 19–20)

Major source of data-response marks.

Know

• Energy pyramids and losses
• Carbon and nitrogen cycles
• Human impacts: eutrophication, greenhouse effect, pollution, conservation
• Source: Cambridge syllabus
• Topic tracking: Chem-Bio.info map

Transport Systems (Topics 8–9)

Diagram and structure-function questions appear frequently.

Plants

• Xylem vs phloem
• Transpiration factors
• Potometer experiments
• Animals
• Heart structure and double circulation
• Artery vs vein vs capillary
• Blood cells and immunity
• Sources: Cambridge syllabus | MicrobeNotes
• 
  

Nutrition (Topics 6–7)

Limiting-factor graphs and digestive applications dominate.

Plants

• Photosynthesis equation and limiting factors
• Starch tests and variegated leaf experiments
• Humans
• Balanced diet and deficiency diseases
• Digestive enzymes and villi absorption
• Sources: Cambridge syllabus | MicrobeNotes

Exam Skills That Move Marks

Command words guide depth of answers; data handling appears across topics.

Source: Cambridge syllabus

One-Page Priority Checklist

• Reproduction hormone graphs
• Energy pyramids and nutrient cycles
• Heart diagrams and transpiration setup
• Limiting-factor graphs and deficiency symptoms
• Source: Cambridge syllabus

Study Plan (6–8 hours/week)

• 2h: Syllabus-aligned note condensation
• 2h: Topic-tagged past questions
• 1–2h: Practical/data tasks
• 1–2h: Redraw core diagrams from memory
• Sources: Cambridge syllabus | Save My Exams



Sources

• Cambridge 2026–2028 syllabus
• Save My Exams overview
• MicrobeNotes summary
• Chem-Bio.info topic updates
• Cambridge IGCSE Biology programme page