1. Carbohydrates in our diet Year Ten – Home Economics and Food Nutrition

2. Lesson Objective Understand the function carbohydrates in the provision of energy Success Criteria To enter into a discussion surrounding simple and complex carbohydrates To read the work theory sheets and answer the questions To fill in the chart listing a range of food sources that contain complex and simple carbohydrates Tasks What are carbohydrates, why do we need them? What groups of people need to have a high daily source of carbohydrates? Read the sheets and answer the questions Look at a range of recipe books and list a range of ingredients that you think are complex or simple carbohydrates Now write up two more recipes using complex carbohydrates that come from an Italian food recipe source.

3. What are carbohydrates? Carbohydrates can be divided into two broad groups: complex or starchy carbohydrates and simple carbohydrates or sugars. All carbohydrates are made up from sugars and each gram of carbohydrate provides 3.75 kcalories.

4. Simple carbohydrates Simple carbohydrates are made up of single sugars (called monosaccharides) or two sugars joined together (called disaccharides). These sugars are quickly broken down in the mouth and stomach and are absorbed into the blood stream, causing a rapid rise in blood sugar levels. This rapid rise causes the body to produce a sharp rise in insulin levels and results in the sugars being converted into fat - something we want to avoid.

5. Complex or starchy carbohydrates Complex or starchy carbohydrates are molecules that are made up of many sugars joined together. Starchy carbohydrates are an important source of energy. Because the molecules are made up of many sugars, it takes longer for the molecules to be broken down in the stomach