Pearson Edexcel · International GCSE
4BI1 International GCSE Biology
Untiered. Paper 1B covers the core content; Paper 2B covers all content, including the content shown in bold and marked B in the specification.
Source: Pearson Edexcel 4BI1 specification · Confirm the syllabus year with your school.
Paper 1BPaper 1 (core content)6 topics
- The nature and variety of living organisms
Characteristics and classification · Microorganisms and viruses2 lessons - Structure and functions in living organisms
Biological molecules and food tests · Cell structure · Diffusion and osmosis · Enzyme action · Photosynthesis · Heart and circulation · Disease and immunity · Breathing and gas exchange · Aerobic and anaerobic respiration · Kidneys and excretion · Nervous system and the eye · Xylem, phloem and water uptake · Diet · Specialised cells and magnification · Leaf structure and mineral ions · Blood vessels and blood · Hormones and homeostasis · Digestion and absorption · Active transport and surface area · Transpiration and translocation · Tropisms21 lessons - Reproduction and inheritance
Reproduction in plants · Chromosomes and cell division · Human reproduction · Monohybrid inheritance · Variation, mutation and selection5 lessons - Ecology and the environment
Food chains and energy flow · Pollution and conservation · Nutrient cycles · Populations and sampling4 lessons - Use of biological resources
Biotechnology and fermenters · Food production · Genetic modification3 lessons - Practical skills
Experimental skills are assessed within both written papers
Practical skills in biology1 lessons
Paper 2BPaper 2 (all content)6 topics
- The nature and variety of living organisms
Characteristics and classification · Microorganisms and viruses2 lessons - Structure and functions in living organisms
Cell structure · Diffusion and osmosis · Biological molecules and food tests · Enzyme action · Photosynthesis · Heart and circulation · Disease and immunity · Aerobic and anaerobic respiration · Kidneys and excretion · Nervous system and the eye · Breathing and gas exchange · Xylem, phloem and water uptake · Diet · Transpiration and translocation · Blood vessels and blood · Leaf structure and mineral ions · Hormones and homeostasis · Digestion and absorption · Active transport and surface area · Specialised cells and magnification · Tropisms21 lessons - Reproduction and inheritance
Reproduction in plants · Chromosomes and cell division · Human reproduction · Monohybrid inheritance · Variation, mutation and selection5 lessons - Ecology and the environment
Food chains and energy flow · Nutrient cycles · Pollution and conservation · Populations and sampling4 lessons - Use of biological resources
Food production · Biotechnology and fermenters · Genetic modification3 lessons - Practical skills
Experimental skills are assessed within both written papers
Practical skills in biology1 lessons