Photosynthetic pigment

In “Plant Pigment,” by Shirley Raps and Jeffrey Harborne, two types of plant pigments are discussed: photosynthetic and nonphotosynthetic pigments. Photosynthetic pigments are responsible for absorbing light and transferring energy during photosynthesis. Among this group of pigments are chlorophylls, phycobilins, carotenoids, and reaction center pigments which causes plants’ green, blue, yellow and orange colors, respectively. Nonphotosynthetic pigments are used to attract insects for…

energy, known as ATP is then used to fix carbon into glucose and oxygen is released as a by-product in the process. This lab focuses on light-dependent reactions that occur in chloroplast where pigments absorb light through photosynthesis. Objective: The purpose of this lab is to extract photosynthetic pigments from spinach leaves using paper chromatography. We will then measure their absorbances at different frequencies using spectrophotometry. Hypothesis: I believe the rate of photosynthesis…

reference to seed germination %, shoot length, root length, fresh weight ,dry weight, leaf area and protein content was represented in figure 2, photosynthetic pigment content was represented in table 4. Plant growth was substantially improved after amending…

Cellular respiration takes sugars and turns those sugars into energy for living organisms. While animal cells obtain sugar from an outside source, plants synthesize their own sugar in a series of anabolic reactions powered by sunlight. The photosynthetic pigments present in a plant, such as chlorophyll, allow the plant to harness energy from the sun and perform the reactions necessary for photosynthesis. Various wavelengths of light from the sun are used to power photosynthesis, and different…

and biochemical pathways. After achieving this knowledge, we furthered our understanding of photosynthetic reactions by and experimenting with the factors that affect photosynthesis, which are light intensity, pigments, and light wavelength. By experimenting with these factors, our group was able to create an action and absorbance spectrum, which allowed us to determine which light wavelengths do the pigments in plants respectively absorb for photosynthesis. This allowed us to fully understand…

molecules during the growth and reproduction of photosynthetic organisms.”(The flow of energy) B. Which living entities contribute to primary production? All photosynthetic entities contribute…

experiment we use the solubility of pigments to distinguish and observe them. Solubility refers to how much of a particular substance can dissolve in a particular solvent. In this experiment we use the solubility of the different colored pigments in the leaf to identify the different pigments. For example, when looking at a normal leaf, you only see that it is green because chlorophyll a and chlorophyll b are the most abundant in green leaves because those chlorophyll’s pigment is green, and as…

EXPERIMENT #2 – ACTION SPECTRUM: FLOATING SPINACH DISK: Hypothesis: I hypothesized that the colored light will produce the most photosynthetic activity due to the larger wavelenth Null Hypothesis: For my null hypothesis I stated that there would be no effect of different colored light on photosynthetic…

They are both aquatic as well as photosynthetic, simply meaning that they live in water and produce their own food. They are usually unicellular and reproduce by binary fission. They also often grow in colonies. The presence of phycobiliproteins, “water-soluble photosynthetic membrane proteins that covalently bind with phycobilins (photosynthetic pigments)” - McGraw-Hill Dictionary of Scientific & Technical Terms, are responsible for the blue-green…

chemical energy in the form of carbohydrates. Autotrophs are “self-feeder” organisms that make their own food, and photoautotrophs like plants, algae, and cyanobacteria use sunlight to make their own food. Photosynthesis takes place in the leaf, or photosynthetic organ, of the photoautotroph. As displayed in Equation 1, the reactants of the photosynthesis…