Digestion and AbsorptionEasy
Question
If the inner surface of the ileum in the human small intestine were smooth, rather than being folded and subdivided into villi, which statement would be true ?
Options
A.The rate of absorption of digested food molecules would be higher, because the digested food would pass more easily through the digestive tract
B.Digestion would not be as effective because there would be fewer cells secreting trypsin (a protein-digesting enzyme)
C.Human would have needed to evolve a much longer small intestine to absorb sufficient nutrients from their food
D.Humans would not be able to survive , because the digestive tract would be more susceptible to damage
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