• Amino
  • By feeding amino acids labeled with isotopic nitrogen to rats, it was discovered that the isotope was incorporated into many of the amino acids found in proteins of the liver and the gut, even though the total protein content of these tissues did not change. (britannica.com)
  • The significance of this observation was first realized in the early 20th century when the phrase " inborn errors of metabolism " was used to describe hereditary conditions in which a variety of amino acids and other metabolites are excreted in the urine. (britannica.com)
  • Most of the structures that make up animals, plants and microbes are made from three basic classes of molecule: amino acids, carbohydrates and lipids (often called fats). (wikipedia.org)
  • Proteins are made of amino acids arranged in a linear chain joined together by peptide bonds. (wikipedia.org)
  • Between prokaryotes and eukaryotes, a difference in ICL structure is the addition of approximately 100 amino acids near the center of the eukaryotic enzyme. (wikipedia.org)
  • In eukaryotes, the additional amino acids are thought to function in the localization of ICL to single-membrane-bound organelles called glyoxysomes. (wikipedia.org)
  • These additional amino acids account for the difference in molecular mass: the prokaryotic ICL is 48kDa, while the eukaryotic ICL is 67 kDa. (wikipedia.org)
  • nucleic acids
  • The three main purposes of metabolism are the conversion of food/fuel to energy to run cellular processes, the conversion of food/fuel to building blocks for proteins, lipids, nucleic acids, and some carbohydrates, and the elimination of nitrogenous wastes. (wikipedia.org)
  • Metabolism is usually divided into two categories: catabolism, the breaking down of organic matter for example, the breaking down of glucose to pyruvate, by cellular respiration, and anabolism, the building up of components of cells such as proteins and nucleic acids. (wikipedia.org)
  • liver
  • A rise in the carbonic acid and pH level in rat blood determines an increase in oxidative properties of the liver cell cytoplasm. (semanticscholar.org)
  • ACC1 and ACC2 are both highly expressed in the liver where both fatty acid oxidation and synthesis are important. (wikipedia.org)
  • example
  • Indeed, in the example, lactic acid is formed in response to abnormal circumstances and is not directly formed in the pathways of carbohydrate catabolism. (britannica.com)
  • The organic ligands included are sometimes referred to as "struts", one example being 1,4-benzenedicarboxylic acid (BDC). (wikipedia.org)
  • stress
  • Thus, during the stress of intense exercise, lactic acid appears in the blood , while glycogen, the form in which carbohydrate is stored in muscle, disappears. (britannica.com)