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What are the four stages of food processing? Where do they take place? 2. 1. 4. 3. In the table, identify the location and sp
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Answer #1

The four stages of food processing are:

  • Ingestion: It occurs in the mouth.
  • Digestion: This stage occurs in both stomach and small intestine.
  • Absorption: It occurs in the small intestine.
  • Egestion: Elimination of waste food occurs through the anus.
Location of enzyme activity Carbohydrates Proteins Lipids Nucleic acid
Oral cavity Salivary amylase
Stomach Pepsin
Small intestine Maltase, Pancreatic amylase Peptidase, Trypsin Lipase Nuclease, Nucleosidases
End product after digestion Monosaccharides Amino acid Fatty acid DNA, RNA
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