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LAB 4: Plant Pigments and PhotosynthesisObjective:The objective of this lab is to compare the photosynthetic rates at varying light intensities and wavelengths using a controlled experiment.Hypothesis:The photosynthetic rate in plants will be higher in the plants with unboiled chloroplasts in the light.Procedure:1.Turn on the spectrophotometer to warm up the instrument and set the wavelength to 605 nm.2.Set up an incubation area that includes a light, water flask, and a test tube rack.3.Keep the beakers of boiled and unboiled chloroplasts on ice at all times.4.Label the cuvettes 1 through 5. Using, lens tissue, wipe the outside walls of each cuvette. Cover the walls and bottom of cuvette 2 with foil and make a foil cap to cover the top.5.To each cuvette, add 1 mL of phosphate buffer. To cuvette 1, add 4 mL of distilled water. To cuvettes 2, 3, and 4, add 3mL of distilled water and 1 mL of