They are capable of photosynthesis because of chloroplast, which contains different photosynthetic pigments such as Chl- a, b, carotenes, and xanthophylls. The photosynthetic pigments (chlorophylls a and b, carotene, and xanthophyll) are in the same proportions as those in higher plants.The typical green algal cell, which can be motile or nonmotile, has a central vacuole, pigments … Usually, spirogyra algae are seen as floating slimy masses, during summer. They are often referred to as ‘scum’. Like plants, algae contain photosynthetic organelles called chloroplasts. They have diversity in shape, size, and structure, but all of them contain different photosynthetic pigments and thus they are autotrophic. b: Spirogyra under 10x objective and the 15x eyepiece. Algae can be unicellular or can exist as large … A photosynthetic pigment (accessory pigment; chloroplast pigment; antenna pigment) is a pigment that is present in chloroplasts or photosynthetic bacteria and captures the light energy necessary for photosynthesis.. Plants pigments (in order of increasing polarity): Carotene: an orange pigment; Xanthophyll: a yellow pigment; Phaeophytin a: a gray-brown pigment Mannitol and Laminarin starch is the … Chlorophyll ‘a’ and ‘c’, carotenoids and Xanthophylls are photosynthetic pigments. ... photosynthetic pigments … The aim of this study was to analyze the photosynthetic performance (parameters derived of chlorophyll fluorescence), chlorophyll a concentrations and the content of UV-absorbing compounds (mycosporine-like aminoacids—MAAs) in three tropical lotic macroalgae, Cladophora glomerata (Chlorophyta), Spirogyra sp. Chloroplasts contain chlorophyll, a green pigment which absorbs light energy for photosynthesis. Spiral shape in Spirogyra, cup shaped in Chlamydomonas, star shaped in Zygnema, girdle shaped in Ulothrix Localization of photosynthetic O 2 production in Spirogyra. Algae also contain other photosynthetic pigments such as carotenoids and phycobilins. A golden brown fucoxanthin pigment gives olive green to brown colour. A short description of Spirogyra, as a representative of algae, is stated there. c: Single Spirogyra … photosynthesis.In the following experiment, the pigments found in the, Spirogyra specis means of thin layer chromatography. They can be single-celled (Chlamydomonas), colonial (Volvox), filamentous (Spirogyra) and tubular forms (Caulerpa). These are photosynthetic with chlorophyll as the photosynthetic pigment, which makes them an essential part of the aquatic ecosystem. Thallus is differentiated into photosynthetic part-frond, stalk – like structure – stipe and a holdfast for attachment. A second series of experiments relevant to the demonstration of complete photosynthetic capacity by chloroplasts were those of … Spirogyra is a lamentous green alga that inhabits the streams and lakes of Gujarat. Green algae, members of the division Chlorophyta, comprising between 9,000 and 12,000 species. Their color varies from yellowish-green to … Photosynthetic pigments: They possesses chlorophyll a, chlorophyll b and small amount of β-carotenoids. Spirogyra is commonly found in clean water and it produces food through the process of photosynthesis. The chloroplasts shows various shape ie. Morphology of Spirogyra Figure: Morphology of Spirogyra. a: Spirogyra under 5x objective and the 10x eyepiece. After Engelmann ( 1 ). Adapted to live in colder temperatures, Spirogyra can store large internal reserves of nutrients Structure: They are green, unbranched filamentous algae. Though they grow underwater during spring, these algae come to the surface when there is enough … The Changes of Carotenoid and Chlorophyll Contents in Green Algae Spirogyra Due to the Exposure to Pesticides. Thousands of Algal species are found in this world.