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In the diagram given above some of the algae have been labeled as A,' B', 'C', 'D', and 'E'. These algae are respectively identified as :
Dictyota, Polysiphonia, Porphyra, Laminaria and Fucus
Fucus, Porphyra, Dictyota, Polysiphonia and Laminaria
Dictyota, Polysiphonia, Porphyra, Fucus and Laminaria
Porphyra, Dictyota, Laminaria, Fucus and Polysiphonia
Answers (1)
Polysiphonia, in its branching form, is a small marine alga characterized by a complex filament structure. The filament undergoes a unique process where apical cells generate proximal segments that subsequently elongate to become axial cells. These axial cells then cut off pericentral cells of equal length. As a result, the central axial cell becomes surrounded by pericentral cells of the same length, forming a single tier or segment. The number of pericentral cells per tier in Polysiphonia can range from four to 24. Porphyra, on the other hand, is a multicellular alga with a membranous structure. It lacks the filamentous form seen in Polysiphonia. Laminaria and Dictyota, both having root-like holdfasts, stem-like stipes, and leaf-like blades, exhibit a more complex structure. These algae are characterized by distinct features resembling roots, stems, and leaves. Fucus Rockweed, commonly found along beaches, has a unique characteristic where the tips of its thallus (the main body) contain bladders that can be popped.
Hence, the correct answer is option 1.
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