polysaccharide

(noun)

A polymer made of many saccharide units linked by glycosidic bonds.

Related Terms

  • feces
  • anal sphincter

Examples of polysaccharide in the following topics:

  • Bacterial Flora

    • For example, undigested polysaccharides (fiber) are metabolized to short-chain fatty acids by bacteria in the large intestine and then absorbed by passive diffusion.
    • These are produced as a result of bacterial fermentation of undigested polysaccharides.
  • Absorption and Feces Formation in the Large Intestine

    • Undigested polysaccharides (fiber) are metabolized to short-chain fatty acids by bacteria in the large intestine and absorbed by passive diffusion.
    • Bacterial fermentation of undigested polysaccharides produces these gases.
  • Mechanisms of Chemical Digestion

    • ., polysaccharides, proteins, fats, nucleic acids) to smaller ones (i.e., monosaccharides, amino acids, fatty acids, nucleotides) .
    • This breaks amylose down into mainly disaccharides, and glycogen with its 1:6 linkages into polysaccharides .
    • The net result of these actions are numerous disaccharides and polysaccharides.
  • Carbohydrates: Sources, Uses in the Body, and Dietary Requirements

    • Polysaccharides are also common sources of energy.
  • Chemical Digestion of Carbohydrates, Proteins, Lipids, and Nucleic Acids

    • In humans, dietary starches are composed of glucose units arranged in long chains of polysaccharide called amylose.
  • Antigenic Determinants and Processing Pathways

    • T cells do not recognize polysaccharide or nucleic acid antigens.
    • This is why polysaccharides are generally T-independent antigens and proteins are generally T-dependent antigens.
  • Development of the Immune System

    • Once born, a child's immune system responds favorably to protein antigens while not as well to glycoproteins and polysaccharides.
    • Not until 12-24 months of age is there a marked improvement in the body's response to polysaccharides.
  • Antigens and Antigen Receptors

    • Antigens are usually proteins or polysaccharides.
    • Lipids and nucleic acids are antigenic only when combined with proteins and polysaccharides.
  • Catabolic-Anabolic Steady State

    • Anabolic processes produce peptides, proteins, polysaccharides, lipids and nucleic acids.
  • Digestive Processes of the Large Intestine

    • Without gut flora, the human body would be unable to utilize some of the undigested carbohydrates it consumes; some types of gut flora have enzymes that human cells lack for breaking down certain polysaccharides.
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