Photosynthesis Lab Report

The purpose of the experiment is to determine the effects of sugar on photosynthesis in Elodea. Sugar water with Elodea, water with Elodea, and water (control) are used to test for photosynthesis. Five drops of sugar water were added to sugar water with Elodea beaker. The three beakers were left under normal light for photosynthesis to occur. After 60 minutes, NaOH solution was added to each beaker to test the volume of CO2. The result shows that both Sugar water with Elodea and water with Elodea consumed the CO2 in same rate, which means sugar does not affect the photosynthetic rate. The amount of sugar used in the experiment is small (5 drops), the decrease of Rubisco and the ratio Rubisco/TSP are too small that do not affect the rate of photosynthesis. Therefore, it does not affect the photosynthetic rate.

Introduction
There are two types of photosynthetic processes: oxygenic photosynthesis and anoxygenic photaosynthesis. Oxygenic photosynthesis is commonly occur in plants, algae and cyanobacteria (Vidyasagar 2015). For example, the plant used in this experiment, Elodea, is an oxygenating plant that used in freshwater aquarium carry out oxygenic photosynthesis (Candace Berkeley Development Coordinator 2016). During oxygenic photosynthesis, water is oxidized and CO2 is reduced, oxygen and carbohydrate are then produced (Vidyasagar 2015). Two chlorophyll-rich photosystems convert light energy into the chemical energy: ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate) (Keller 2015). Respiration is canceled by oxygenic photosynthesis; it consumes the carbon dioxide produced by respiration and produce