Lesson 4: Biology B The Digestive System – Flashcards
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Look at figure 30-1. In which structure is water extracted from digested food
answer
H (large intestine)
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Where does the process of chemical digestion begin
answer
mouth
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What enzyme found in saliva breaks chemical bonds in starches, forming sugars
answer
amylase
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After complex organic molecules have been absorbed in the small intestine, what materials are left behind
answer
water and cellulose
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What is the purpose of the villi in the small intestine
answer
to increase the surface area through which nutrients can be absorbed
