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phycobilin
This term is a highly specialized biochemical designation used almost exclusively in microbiology, botany, and marine biology. It describes a specific class of pigments that enable certain photosynthetic organisms to capture light in the blue-green spectrum, which penetrates deeper into water columns than the red light absorbed by chlorophyll.
As a technical chemical term referring to a specific molecular structure, it is treated as an uncountable noun in most scientific contexts. It is typically used to describe the substance itself or the chemical property rather than individual molecules.
Ý nghĩa
An open-chain tetrapyrrole pigment found in cyanobacteria and red algae that serves as an accessory pigment for photosynthesis by absorbing light energy and transferring it to chlorophyll.
The phycobilin pigments allow these organisms to survive in deep water where only specific wavelengths of light penetrate.