Objective: To understand the function of the root, the process of transpiration, and food preparation and respiration in plants. Learning outcomes: Students will be able to 1. Explain the various functions of roots. 2. Explain the process of photosynthesis. 3. Test for the presence of starch in a green leaf. 4. Describe the process of transpiration. 5. Explain the effects of transpiration. 6. Explain how plants respire through their leaves and roots. 7. Describe how aquatic plants respire.