6.1 Digestion

IB Assessment Statements

• 6.1.1 Explain why digestion of large food molecules is essential (3)
• 6.1.2 Explain the need for enzymes in digestion (3)
• 6.1.3 State the source, substrate, products and optimum pH conditions for one amylase, one protease and one lipase (1)
• 6.1.4 Draw and label a diagram of the digestive system (1)
• 6.1.5 Outline the function of the stomach, small intestine and large intestine (2)
• 6.1.6 Distinguish between absorption and assimilation (2)
• 6.1.7 Explain how the structure of the villus is related to its role in absorption and transport of the products of digestion (3)

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PPTs: 1 / 2

Articles:

• Food for fuel: Olympian Phelps’ unusual diet – BBC News

Websites:

• The Digestive System – from Maricopa
• Click4Biology

Videos/Simulation:

• Digestion Animation
• Organs of Digestion from McGraw Hill
• Digestion Videos from BBC – The Learning Zone
• Digestion Crash Course