Introduction: Photosynthesis is the process by which green plants use the light energy to convert carbon dioxide and water into simple sugar called glucose, which provides a basic energy source for the plant. Photosynthesis occurs in leaves that contain specialized cell structures called chloroplasts. Chloroplasts contain molecules of a green pigment called chlorophyll, consisting largely of carbon and hydrogen. It gives green color and absorbs the necessary light for photosynthesis. Chloroplasts are found in palisade cells, they have a large surface area, which means there is more change of light hitting a chloroplast. Light is a very important factor when it comes to the process of photosynthesis, without light the reaction cannot be carried out and no glucose can be made. Light intensity is one of the factors that affect the rate of photosynthesis and that is what our experiment is based on:
Aim: In this experiment we shall investigate how the rate of photosynthesis (measured by the increased volume of oxygen) is affected by changes of light intensity in water plants.
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