Digestion Part III. How we eat Pages 406 – 420

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Presentation transcript:

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 Page 407

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

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 __________________

Amylase

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

Peristalsis

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