Skip to main content
Biology LibreTexts

3: Enzymes

  • Page ID
    25088
  • Students learn about enzyme function, enzyme specificity and the molecular basis of lactose intolerance through experiments with the enzyme lactase and analysis and discussion questions. Students engage in the scientific practices of designing and carrying out experiments and interpreting data. Students also analyze how lactase functions in the digestive system and how the digestive and circulatory systems cooperate to provide cells all over the body with molecules that provide the energy for cellular processes.

    Activity and Teacher guide is available:

    • 3.1: Enzyme Protocol
      The food you eat contains many different types of molecules, including two types of sugar molecules: monosaccharides and disaccharides. Monosaccharides from the food you eat are absorbed from your gut into your blood and carried to all the cells in your body where they are used for energy. Each disaccharide molecule must be broken down or digested into its monosaccharide components before it can be absorbed into the blood.
    • 3.2: Enzyme Teacher Preparation Notes
      Students will learn about enzyme function, enzyme specificity, and the molecular basis of lactose intolerance through experiments with the enzyme lactase and analysis and discussion questions. Students engage in the scientific practices of designing and carrying out experiments and interpreting data. Students will also analyze how lactase functions in the digestive system and how the digestive and circulatory systems cooperate to provide other cells with the energy for cellular processes.