Glycine max L. Merr., optimum temperature, photosynthesis, soybean, stomatal activity, stomatal frequency, sub-optimum temperature: DOI: 10.17660/ActaHortic.1996.440.15: Abstract: Stomatal frequency, length and width were studied in two determinate type soybean (Glycine max L. Merr.) cultivars at 15, 20 and 25 °C on 60th day after emergence ... The chemical equation for photosynthesis is [latex]6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2.[/latex] In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts. Chloroplasts contain disc-shaped structures called thylakoids, which contain the pigment chlorophyll. Structure of leaves The leaves are the part of a plant where most photosynthesis takes place. If you cut a leaf in half and look at the cut end you will see something like this: /**/ Key: Waxy cuticle, this gives the leaf a waterproof layer, which lets in light. Part 1: Observing and Measuring Photosynthesis We have learned that photosynthesis involves the conversion of carbon dioxide and water into organic molecules such as glucose. In doing so, oxygen is a product while carbon dioxide is a reactant that is used up during photosynthesis. Create your hypothesis as to which type of light will be best for photosynthesis and why. Prepare for the experiment by creating an infiltration solution. Combine 1 L of water with ½ teaspoon of baking soda and 3-4 drops of liquid soap. Next, punch leaf disks from healthy green spinach leaves.