Chemical Digestion Ms. Lowrie Biology 11. Enzymes  Biological catalysts  Made in ribosomes = proteins  Three types in digestion: Carbohydrase Lipase.

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Presentation transcript:

Chemical Digestion Ms. Lowrie Biology 11

Enzymes  Biological catalysts  Made in ribosomes = proteins  Three types in digestion: Carbohydrase Lipase Protease  Named after organic compound they breakdown

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

Complete (pg 210 – 218) EnzymeProduced by Place of reaction Breaks down… Into… Salivary amylase Salivary glands Pepsin Stomach Lipase Pancreas Pancreatic amylase Pancreas Trypsin & Erepsin Pancreas & Small Intestine

Chart EnzymeProduced by Place of reaction Breaks down… Into… Salivary amylase Salivary glandsMouth Starch (Polysaccharides) Disaccharides Pepsin Stomach Lipase Pancreas Pancreatic amylase Pancreas Trypsin & Erepsin Pancreas & Small Intestine

Chart EnzymeProduced by Place of reaction Breaks down… Into… Salivary amylase Salivary glandsMouthStarchDisaccharides Pepsin Stomach Long amino acid chains Short amino acid chains Lipase Pancreas Pancreatic amylase Pancreas Trypsin & Erepsin Pancreas & Small Intestine

Chart EnzymeProduced by Place of reaction Breaks down… Into… Salivary amylase Salivary glandsMouthStarchDisaccharides Pepsin Stomach Long amino acid chains Short amino acid chains Lipase PancreasSmall IntestinesFat droplets Glycerol & Fatty acids Pancreatic amylase Pancreas Trypsin & Erepsin Pancreas & Small Intestine

Chart EnzymeProduced by Place of reaction Breaks down… Into… Salivary amylase Salivary glandsMouthStarchDisaccharides Pepsin Stomach Long amino acid chains Short amino acid chains Lipase PancreasSmall IntestineFat droplets Glycerol & Fatty acids Pancreatic amylase PancreasSmall IntestineDisaccharidesSimple sugars Trypsin & Erepsin Pancreas & Small Intestine

Chart EnzymeProduced by Place of reaction Breaks down… Into… Salivary amylase Salivary glandsMouthStarchDisaccharides Pepsin Stomach Long amino acid chains Short amino acid chains Lipase PancreasSmall IntestineFat droplets Glycerol & Fatty acids Pancreatic amylase PancreasSmall IntestineDisaccharidesSimple sugars Trypsin & Erepsin Pancreas & Small Intestine Small Intestine Short amino acid chains Amino acids

Why is bile not included?  Not chemical digestion Chemical bonds aren’t broken  Mechanical digestion Fat is made smaller Broken into smaller fat droplets

Review – Starch (Carbs) Starch (polysaccharides) by: salivary amylase Disaccharides by: pancreatic amylase Simple Sugar diffuses into … Capillary

Review – Fat Fat by: bile (mechanical) Fat Droplets by: lipase Fatty acids & Glycerol diffuses into … Lacteal

Review – Protein Protein (long a.a. chains) by: pepsin Short a.a. chains by: trypsin & erepsin Amino Acids diffuses into … Capillary

Lipase Pancreatic amylase Trypsin Erepsin Bile