Biology – Cambridge IGCSE Combined Science notes

About These Notes

These are comprehensive notes that includes GCE Biology that can be used for the Biology section of the Cambridge IGCSE Combined Science (B1–B12). Each unit has a section for experiments and contain activities. Sample assessment questions are included as well. Covered units are:

• Unit 1: Cells And Levels Of Organisation
  • 1.1 Structure And Function Of Specialised Cells
  • 1.2 Ecosystems
  • 1.3 Types Of Ecosystems
  • 1.4 Energy Flow In An Ecosystem
  • 1.5 The Carbon And The Nitrogen Cycle
  • 1.6 Biodiversity
  • 1.7 Assessment Questions
• Unit 2: Human Nutrition
  • 2.1 Mechanical And Chemical Digestion
  • 2.2 Human Alimentary Canal
  • 2.3 Balanced Diet
  • 2.4 Malnutrition And Associated Diseases
  • 2.5 Food Tests
  • 2.6 Assessment Questions
• Unit 3: Nutrition In Plants
  • 3.1. Photosynthesis
  • 3.2 Factors Affecting Photosynthesis
  • 3.3 The Internal Structure Of The Dicotyledonous Leaf
  • 3.4 Sample Assessment Questions
• Unit 4: Respiratory System
  • 4.1 Aerobic Respiration
  • 4.2 Anaerobic Respiration
  • 4.3 Roles And Adaptation Of The Alveolus
  • 4.4 The Composition Of Inhaled And Exhaled Air
  • 4.5 Sample Assessment Questions
• Unit 5: Transport Systems In Plants
  • 5.1 Transpiration And Factors Affecting Transpiration
  • 5.2 Measuring The Rate Of Transpiration In Plants
  • 5.3 Importance Of Transpiration
  • 5.4 Adaptation Of Plant Leaves To Reduce Transpiration
  • 5.5 Plasmolysis And Turgidity
  • 5.6 Sample- Assessment Questions
• Unit 6: Reproduction In Plants
  • 6.1 Asexual Reproduction In Plants
  • 6.2 Sexual Reproduction In Plants
  • 6.3 A Comparison Of Sexual And Asexual Reproduction
  • 6.4 Germination
  • 6.5 Conditions Necessary For Germination
  • 6.6 Sample Assessment Questions
• Unit 7: Transport Systems In Humans
  • 7.1 Functions Of Blood
  • 7.2 Double Circulatory System
  • 7.3 Structure Of The Blood Vessels
  • 7.4 Sample Assessment Questions
• Unit 8: Human Reproductive System
  • 8.1 Structure Of Female And Male Reproductive Systems
    And Sex Cells
  • 8.2 Fertilisation And The Role Of The Placenta
  • 8.3 The Menstrual Cycle
  • 8.4 Methods Of Contraception
  • 8.5 Sample Assessment Questions
• Unit 9: Health And Diseases 1
  • 9.1 Sexually Transmitted Infections (STIs)
  • 9.2 Control Methods And Treatment Of STIs
  • 9.3 HIV And Aids
  • 9.4 Substance Abuse
  • 9.5 Sample Assessment Questions
• Unit 10: Health And Diseases 2
  • 10.1 Causes, Signs, Symptoms And Treatment Of Malaria
  • 10.2 Life Of Cycle Of Mosquito
  • 10.3 Typhoid, Ebola And Cholera
  • 10.4 Sample Assessment Questions
• Unit 11: Immunity
  • 11.1 Natural Immunity
  • 11.2 Artificial Immunity
  • 11.3 Immunisation And Breast Feeding
  • 11.4 Sample Examination Questions