Unit 4: Energy, Environment, Microbiology and Immunity
📖 Lessons in this unit — choose a lesson
Lesson 1Unit 4 — Complete A Level and AS source notes7 pointsLesson 24.1 Photosynthesis11 pointsLesson 34.2 Ecosystems & Energy Transfer10 pointsLesson 44.3 Climate Change10 pointsLesson 54.4 Evolution11 pointsLesson 64.5 Microorganisms & Immunity12 pointsLesson 74.6 Forensics9 pointsLesson 84.1.1 Plant Cell Structure4 pointsLesson 94.1.2 Electron Microscopy of Plant Cells4 pointsLesson 104.1.3 Starch and Cellulose: Structure and Function4 pointsLesson 114.1.4 Properties of Cellulose and Plant Fibres4 pointsLesson 124.1.5 The Vascular Structure of Plants4 pointsLesson 134.1.6 Core Practical 7: Identifying Tissue Types Within Stems4 pointsLesson 144.2.1 Plant-Based Products for Sustainability4 pointsLesson 154.2.2 Water and Inorganic Ions in Plants4 pointsLesson 164.2.3 Core Practical 8: Determining the Tensile Strength of Plant Fibres5 pointsLesson 174.3.1 Bacterial Growth Conditions4 pointsLesson 184.3.2 Plant Products with Antimicrobial Properties4 pointsLesson 194.3.3 Core Practical 9: Antimicrobial Properties of Plants5 pointsLesson 204.3.4 Development of Drugs and Drug Testing4 pointsLesson 214.4.1 The Three Domains of Life4 pointsLesson 224.4.2 The Variety of Life4 pointsLesson 234.4.3 Biodiversity and Endemism4 pointsLesson 244.4.4 Species Richness and Heterozygosity Index5 pointsLesson 254.4.5 Index of Biodiversity5 pointsLesson 264.4.6 Ecological Niches and Adaptations4 pointsLesson 274.4.7 Hardy-Weinberg Equation5 pointsLesson 284.4.8 Roles of Seed Banks and Zoos in Conservation4 points