Chemical Digestion

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Chemical Digestion

• Ms. Lowrie
• Biology 11

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Enzymes

• Biological catalysts
• Made in ribosomes proteins
• Three types in digestion
• Carbohydrase
• Lipase
• Protease
• Named after organic compound they breakdown

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Review Organic Compounds

• Carbohydrates
• Polysaccharides/starch are composed of
• Simple sugars (monosaccharides)
• Proteins are composed of
• Amino acids
• Lipids are composed of
• Fatty acids glycerol

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Complete (pg 210 218)
Enzyme Produced by Place of reaction Breaks down Into
Salivary amylase Salivary glands
Pepsin Stomach
Lipase Pancreas
Pancreatic amylase Pancreas
Trypsin Erepsin Pancreas Small Intestine
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Chart
Enzyme Produced by Place of reaction Breaks down Into
Salivary amylase Salivary glands Mouth Starch (Polysaccharides) Disaccharides
Pepsin Stomach
Lipase Pancreas
Pancreatic amylase Pancreas
Trypsin Erepsin Pancreas Small Intestine
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Chart
Enzyme Produced by Place of reaction Breaks down Into
Salivary amylase Salivary glands Mouth Starch Disaccharides
Pepsin Stomach Stomach Long amino acid chains Short amino acid chains
Lipase Pancreas
Pancreatic amylase Pancreas
Trypsin Erepsin Pancreas Small Intestine
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Chart
Enzyme Produced by Place of reaction Breaks down Into
Salivary amylase Salivary glands Mouth Starch Disaccharides
Pepsin Stomach Stomach Long amino acid chains Short amino acid chains
Lipase Pancreas Small Intestines Fat droplets Glycerol Fatty acids
Pancreatic amylase Pancreas
Trypsin Erepsin Pancreas Small Intestine
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Chart
Enzyme Produced by Place of reaction Breaks down Into
Salivary amylase Salivary glands Mouth Starch Disaccharides
Pepsin Stomach Stomach Long amino acid chains Short amino acid chains
Lipase Pancreas Small Intestine Fat droplets Glycerol Fatty acids
Pancreatic amylase Pancreas Small Intestine Disaccharides Simple sugars
Trypsin Erepsin Pancreas Small Intestine
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Chart
Enzyme Produced by Place of reaction Breaks down Into
Salivary amylase Salivary glands Mouth Starch Disaccharides
Pepsin Stomach Stomach Long amino acid chains Short amino acid chains
Lipase Pancreas Small Intestine Fat droplets Glycerol Fatty acids
Pancreatic amylase Pancreas Small Intestine Disaccharides Simple sugars
Trypsin Erepsin Pancreas Small Intestine Small Intestine Short amino acid chains Amino acids
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Why is bile not included?

• Not chemical digestion
• Chemical bonds arent broken
• Mechanical digestion
• Fat is made smaller
• Broken into smaller fat droplets

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Review Starch (Carbs)

• Starch (polysaccharides)
• by salivary amylase
• Disaccharides
• by pancreatic amylase
• Simple Sugar
• diffuses into
• Capillary

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Review Fat

• Fat
• by bile (mechanical)
• Fat Droplets
• by lipase
• Fatty acids Glycerol
• diffuses into
• Lacteal

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Review Protein

• Protein (long a.a. chains)
• by pepsin
• Short a.a. chains
• by trypsin erepsin
• Amino Acids
• diffuses into
• Capillary

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LipasePancreatic amylaseTrypsinErepsin
Bile