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Digestion

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

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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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