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  • YEAR 7
    • Bio 1: Cells (7A)
    • Bio 2: Reproduction and Variation (7B, 7D)
    • Bio 3: Environment (7C)
    • Chem 1: Acids and Alkalis (7E)
    • Chem 2: Chemical Reactions (7F)
    • Chem 2: Solutions (7H)
    • Phys 1: Solids, Liquids and Gases (7G)
    • Phys 2: Forces (7K)
    • Phys 3: Energy (7I)
    • Phys 3: Electricity (7J)
    • The Solar System and beyond
  • YEAR 8
    • Bio 4: Nutrition (8A)
    • Bio 5: Respiration (8B)
    • Bio 6: Microbes and Disease (8C)
    • Chem 3: Elements, Mixtures, Compounds (8EF)
    • Chem 4: Chemical Reactions (8G)
    • Phys 4: Heat transfer (8I)
    • Phys 5: Magnetism (8J)
    • Phys 6: Waves (8L Sound)
    • Phys 6: Waves (8K Light)
    • Ecological Relationships (8D)
    • The Rock Cycle (8H)
  • YEAR 9
    • Bio 7: Inheritance and Selection (9A)
    • Bio 8: Health (9B)
    • Bio 9: Farming
    • Chem 5: Metals (9EF)
    • Chem 6: Pollution (9CG)
    • Phys 7: Motion (9K)
    • Phys 8: Energy and Electricity (9I)
    • Phys 9: Pressure and Moments (9L)
    • Plants for food and Photosynthesis (9CD)
    • Environmental Chemistry and Using Chemistry (9GH)
    • Gravity and Space (9J)
  • IGCSE
    • IGCSE Biology >
      • Unit 1
      • Unit 2
      • Unit 3
      • Unit 4
      • Unit 5
      • Unit 6
      • Unit 7
      • Unit 8
      • Unit 9
      • Unit 10
      • Unit 11
      • Unit 12
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IGCSE BIOLOGY 
UNIT 4: BIOLOGICAL MOLECULES

Before you start you can look back at 8A Nutrition.

This unit builds on your previous knowledge about  

If you only remember one thing:

FATS ARE MADE OF FATTY ACIDS AND GLYCEROL, PROTEINS ARE MADE OF AMINO ACIDS AND STARCH IS MADE OF SIMPLE SUGARS.

This is the second of the 21 Biology units:

LESSON 1: CARBOHYDRATES, FATS AND PROTEINS

This lesson has 2 parts:
1. Lesson video
2. Food test simulation (link in video)
Try the BBC Bitesize website food test animation: Click here 

EXTRA RESOURCES

Watch these videos from Fuse school about protein structure from Fuse school
Watch the crash course video about biological molecules (higher level, and the man speaks really fast!)
Here is a video that summarises deficiency diseases.

LESSON 2: DNA STRUCTURE

EXTRA RESOURCES

Here are some extra videos about DNA structure.
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