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Edexcel
4BI1
2017 specification
Paper 1B
Paper 1B
Paper 1 (core content)
The nature and variety of living organisms
Characteristics and classification · Microorganisms and viruses
2 subtopic 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 · Tropisms
21 subtopic lessons
Reproduction and inheritance
Reproduction in plants · Chromosomes and cell division · Human reproduction · Monohybrid inheritance · Variation, mutation and selection
5 subtopic lessons
Ecology and the environment
Food chains and energy flow · Pollution and conservation · Nutrient cycles · Populations and sampling
4 subtopic lessons
Use of biological resources
Biotechnology and fermenters · Food production · Genetic modification
3 subtopic lessons
Practical skills
Experimental skills are assessed within both written papers
Practical skills in biology
1 subtopic lessons