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Digestion

This section explores the intricate process of digestion, detailing how the food we eat is broken down into essential nutrients and energy. Covering key components of the human digestive system, it explains the mechanical and enzymatic processes that begin in the mouth, including the roles of different teeth and saliva. It also covers the esophagus, peristalsis, and the function of mucus in digestion. By mastering these concepts, you will grasp how food transitions from intake to nutrient absorption, enhancing your understanding of human biology.

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Digestion

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  1. Digestion Part III. How we eat Pages 406 – 420 Read independently page 406 Questions you should be able to do: page 411, #1-5

  2. How We Eat? • How does the food we eat get broken down into the individual nutrients and the energy we need? • What are the steps?

  3. Human digestive system • Page 407

  4. The Mouth • What goes on in the mouth? • Chewing food • Mechanical • Describe what is meant by different teeth for different food.

  5. The Mouth • What goes on in the mouth? • Saliva • Enzymatic digestion • Enzymes: Please know the definition of an enzyme and be able to explain what it means. As a biochemist, it pains me when students get this wrong • Contains amylase • Breaks down long __________________ into shorter _________________and __________________

  6. Amylase

  7. Esophagus • Muscular tube that carries food from the mouth to the stomach • Mucus: what are the roles of mucus? Besides the esophagus, where is mucus found? • Peristalsis:describe what is going on in the next slide

  8. Peristalsis

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