Additional lessons
📖 Lessons in this unit — choose a lesson
Lesson 11.3.2 Cell Theory- Skills6 pointsLesson 21.3.3 Microscopes6 pointsLesson 31.3.9 Cell Types and Structures- Skills5 pointsLesson 41.3.10 Drawing Cells- Skills6 pointsLesson 51.5.2 Evidence of Evolution5 pointsLesson 61.5.3 Convergent Evolution4 pointsLesson 71.6.2 Reasons for Extinction4 pointsLesson 81.6.3 Ecosystem Loss4 pointsLesson 91.6.4 Loss of Biodiversity4 pointsLesson 101.6.5 How to Preserve Biodiversity4 pointsLesson 112.1.1 Properties of Carbon4 pointsLesson 122.1.2 Macromolecules5 pointsLesson 132.1.3 Carbohydrates: Definition, Functions and Examples5 pointsLesson 142.1.4 Role of Glycoproteins4 pointsLesson 152.1.6 Fatty Acids5 pointsLesson 162.1.7 Phospholipids4 pointsLesson 172.2.1 Formation of Proteins5 pointsLesson 182.2.2 The Variety of Proteins5 pointsLesson 192.2.3 Protein Structure: Effect of pH and Temperature4 pointsLesson 202.3.1 Lipid Bilayers4 pointsLesson 212.3.2 Membrane Proteins4 pointsLesson 222.3.4 Glycolipids and Glycoproteins4 pointsLesson 232.3.5 The Fluid Mosaic Model: Skills4 pointsLesson 242.4.1 Cell Organelles4 pointsLesson 252.4.2 Cell Compartmentalisation4 pointsLesson 262.5.1 Stem Cells5 pointsLesson 272.6.1 Gas Exchange in Organisms5 pointsLesson 282.6.2 Mammalian Lungs: Adaptations4 pointsLesson 292.6.3 Mechanism of Ventilation5 pointsLesson 302.6.4 Measuring Lung Volumes: Skills5 pointsLesson 312.6.5 Gas Exchange in Plants4 pointsLesson 322.6.6 Drawing Leaf Structure: Skills5 pointsLesson 332.6.7 Determining Stomatal Density: Skills5 pointsLesson 342.7.1 Blood Vessels5 pointsLesson 352.7.2 Identifying Blood Vessels5 pointsLesson 362.7.3 Measuring Pulse Rate5 pointsLesson 372.7.4 Coronary Heart Disease6 pointsLesson 382.7.5 The Transpiration Stream6 pointsLesson 392.7.6 Adaptations of Xylem Vessels6 pointsLesson 402.7.7 Drawing Root and Stem Structure6 pointsLesson 412.8.1 Habitats5 pointsLesson 422.8.2 Abiotic Factors and Species Distribution6 pointsLesson 432.8.3 Species Distribution Skills6 pointsLesson 442.8.4 Abiotic Factors in Marine and Terrestrial Habitats5 pointsLesson 452.8.5 Biomes6 pointsLesson 462.9.2 Methods of Nutrition6 pointsLesson 472.9.3 Nutrition in Hominidae6 pointsLesson 482.9.4 Nutrition: Adaptations of Organisms6 pointsLesson 492.9.5 Competition Between Species6 pointsLesson 503.1.1 Metabolism: Enzymes and Reactions5 pointsLesson 513.1.2 Enzyme Action4 pointsLesson 523.1.3 Enzyme Activity Skills6 pointsLesson 533.1.4 Enzyme Reaction Rates Skills6 pointsLesson 543.1.5 Activation Energy Skills5 pointsLesson 553.2.1 Adenosine Triphosphate (ATP)5 pointsLesson 563.2.3 Cell Respiration Skills6 pointsLesson 573.3.2 Separating Photosynthetic Pigments6 pointsLesson 583.3.3 Absorption Spectra5 pointsLesson 593.3.4 Absorption and Action Spectra Skills6 pointsLesson 603.3.5 Limiting Factors of Photosynthesis6 pointsLesson 613.3.6 Carbon Dioxide Enrichment Experiments6 pointsLesson 623.4.2 Nerve Impulses6 pointsLesson 633.4.3 Nerve Impulses: Skills6 pointsLesson 643.4.4 Synapses5 pointsLesson 653.5.1 Integration in Living Organisms5 pointsLesson 663.5.2 The Nervous System5 pointsLesson 673.5.3 Reflex Arc and Movement Control4 pointsLesson 683.5.4 Epinephrine and Melatonin4 pointsLesson 693.5.5 Control Mechanisms4 pointsLesson 703.6.1 Pathogens5 pointsLesson 713.6.2 Barriers to Pathogens: Skin and Mucous Membranes5 pointsLesson 723.6.3 Blood Clotting4 pointsLesson 733.6.4 The Immune System5 pointsLesson 743.6.5 White Blood Cells5 pointsLesson 753.6.6 Adaptive Immune Response5 pointsLesson 763.6.7 HIV and AIDS5 pointsLesson 773.6.8 Antibiotics5 pointsLesson 783.6.9 Antibiotic Resistance5 pointsLesson 793.6.10 Zoonoses5 pointsLesson 803.6.11 Vaccines and Immunity5 pointsLesson 813.6.12 Evaluating COVID-19 Data: Skills6 pointsLesson 823.7.1 Populations in Ecosystems6 pointsLesson 833.7.2 Estimating Population Size6 pointsLesson 843.7.3 Limiting Population Size5 pointsLesson 853.7.4 Limiting Population Size: Examples5 pointsLesson 863.7.5 Population Growth Curves: Skills6 pointsLesson 873.7.6 Populations: Intraspecific Relationships5 pointsLesson 883.7.7 Community: Interspecific Relationships5 pointsLesson 893.7.8 Interspecific Competition5 pointsLesson 903.7.9 Chi-Squared Test: Skills6 pointsLesson 913.8.1 Ecosystems as Open Systems5 pointsLesson 923.8.2 Energy Flow in Ecosystems6 pointsLesson 933.8.3 Obtaining Carbon Compounds in Ecosystems4 pointsLesson 943.8.4 Trophic Levels4 pointsLesson 953.8.5 Pyramids of Energy: Skills5 pointsLesson 963.8.6 Energy Losses5 pointsLesson 973.8.7 Primary and Secondary Production5 pointsLesson 983.8.8 The Carbon Cycle4 pointsLesson 993.8.9 Nutrient Cycling4 pointsLesson 1004.1.2 Electrophoresis and PCR5 pointsLesson 1014.1.3 Electrophoresis and PCR: Applications5 pointsLesson 1024.2.1 Transcription in Protein Synthesis5 pointsLesson 1034.2.2 Translation in Protein Synthesis5 pointsLesson 1044.2.3 The Genetic Code5 pointsLesson 1054.2.4 Protein Structure and Mutations4 pointsLesson 1064.3.1 Gene Mutations5 pointsLesson 1074.3.2 Consequences of Gene Mutations4 pointsLesson 1084.3.3 Mutations and Genetic Variation5 pointsLesson 1094.4.1 Cell Division4 pointsLesson 1104.4.3 Mitosis4 pointsLesson 1114.4.4 Mitosis: Skills5 pointsLesson 1124.4.5 Meiosis4 pointsLesson 1134.5.1 Osmosis5 pointsLesson 1144.5.2 Osmosis in Cells5 pointsLesson 1154.5.3 Osmosis: Skills6 pointsLesson 1164.6.1 Sexual and Asexual Reproduction5 pointsLesson 1174.6.2 Sexual Reproduction5 pointsLesson 1184.6.3 The Menstrual Cycle5 pointsLesson 1194.6.4 Fertilisation5 pointsLesson 1204.6.5 Plant Reproduction5 pointsLesson 1214.6.6 Pollination5 pointsLesson 1224.6.7 Seed Dispersal and Germination5 pointsLesson 1234.7.1 Genetic Inheritance and Genetic Crossing6 pointsLesson 1244.7.2 Inheritance: Terminology5 pointsLesson 1254.7.3 Inheriting Alleles6 pointsLesson 1264.7.4 Sex Determination6 pointsLesson 1274.7.5 Pedigree Charts6 pointsLesson 1284.7.6 Continuous Variation: Skills6 pointsLesson 1294.8.1 Homeostasis: Maintaining the Internal Environment5 pointsLesson 1304.8.2 Regulation of Blood Glucose5 pointsLesson 1314.8.3 Thermoregulation5 pointsLesson 1324.9.1 Natural Selection and Evolution5 pointsLesson 1334.9.2 Selection Pressures5 pointsLesson 1344.9.3 Selection Pressures: Skills5 pointsLesson 1354.10.1 Stability in Ecosystems4 pointsLesson 1364.10.2 Ecosystem Stability: Skills5 pointsLesson 1374.10.3 Keystone Species4 pointsLesson 1384.10.4 Sustainability in Ecosystems and Agriculture4 pointsLesson 1394.10.5 Eutrophication4 pointsLesson 1404.10.6 The Effects of Pollution4 pointsLesson 1414.10.7 Restoring Ecosystems4 pointsLesson 1424.11.3 Carbon Sequestration4 points