Hydrolysis and dehydration synthesis Standard 4 key idea 3 performance indicator 1.2 major understanding 1.2h

We have learned about carbohydrates, protein, and lipids. We obtain these nutrients from food. How do we digest these nutrients? How do we break them down?

Hydrolysis Splitting with water: Examples Starch + N water -  N glucose Maltose + water  2 glucose Lipid + 2 water  glycerol + 3 fatty acids Protein + N water  N amino acids

Hydrolysis Complex food molecules Molecular end products Carbohydrates (starches, double sugars) Simple sugars Lipids (fats, oils)Fatty acids and glycerol ProteinsAmino acids Nucleic acidsNucleotides

Maltose + water  2 glucose

Lipid + water  glycerol and 3 fatty acids

Protein + water  amino acids

Group activity Using models of macromolecules, simulate the process of hydrolysis.

Dehydration synthesis: putting together by taking out water (opposite of hydrolysis) combining monomers by removing atoms needed to form a molecule of water Examples: glucose + glucose  maltose

Glucose+ glucose  maltose + water

Glycerol + fatty acids  triglyceride + water

Amino acid + amino acid  dipeptide or protein

Group activity Using models of macromolecules, simulate the process of dehydration.