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Arabinogalactan is a biopolymer consisting of arabinose and galactose monosaccharides. Two classes of arabinogalactans are found in nature: plant arabinogalactan and microbial arabinogalactan. In plants, it is a major component of many gums, including gum arabic and gum ghatti.
Surfactant reduces surface tension, so that the alveoli in the lungs are able to expand. It is essentially a biological detergent.Surfactant reduces surface tension. Without surfactant, the wet surfaces of the alveoli in your lungs would stick together and your lungs would not be able to expand-so, you would not be able to breath.The alveoli are the tiny sacs in your lungs where oxygen is captured from inhaled air and absorbed into your bloodstream.ithout surfactant, the wet surfaces of the alveoli in your lungs would stick together and your lungs would not be able to expand-so, you would not be able to breath. The alveoli are the tiny sacs in your lungs where oxygen is captured from inhaled air and absorbed into your bloodstream.