enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Enzyme - Wikipedia

    en.wikipedia.org/wiki/Enzyme

    One example of enzyme deficiency is the most common type of phenylketonuria. Many different single amino acid mutations in the enzyme phenylalanine hydroxylase, which catalyzes the first step in the degradation of phenylalanine, result in build-up of phenylalanine and related products. Some mutations are in the active site, directly disrupting ...

  3. Biosynthesis - Wikipedia

    en.wikipedia.org/wiki/Biosynthesis

    Biosynthesis, i.e., chemical synthesis occurring in biological contexts, is a term most often referring to multi-step, enzyme-catalyzed processes where chemical substances absorbed as nutrients (or previously converted through biosynthesis) serve as enzyme substrates, with conversion by the living organism either into simpler or more complex ...

  4. Protein biosynthesis - Wikipedia

    en.wikipedia.org/wiki/Protein_biosynthesis

    Methylation is the reversible addition of a methyl group onto an amino acid catalyzed by methyltransferase enzymes. Methylation occurs on at least 9 of the 20 common amino acids, however, it mainly occurs on the amino acids lysine and arginine. One example of a protein which is commonly methylated is a histone. Histones are proteins found in ...

  5. What Are Digestive Enzymes, and Do You Really Need Them, or ...

    www.aol.com/digestive-enzymes-really-them-just...

    For premium support please call: 800-290-4726 more ways to reach us

  6. Photosynthesis - Wikipedia

    en.wikipedia.org/wiki/Photosynthesis

    For example, in green plants, the action spectrum resembles the absorption spectrum for chlorophylls and carotenoids with absorption peaks in violet-blue and red light. In red algae , the action spectrum is blue-green light, which allows these algae to use the blue end of the spectrum to grow in the deeper waters that filter out the longer ...

  7. Biochemistry - Wikipedia

    en.wikipedia.org/wiki/Biochemistry

    The enzyme itself is not used up in the process and is free to catalyze the same reaction with a new set of substrates. Using various modifiers, the activity of the enzyme can be regulated, enabling control of the biochemistry of the cell as a whole. The structure of proteins is traditionally described in a hierarchy of four levels.

  8. What Are Digestive Enzymes, and Do You Really Need Them, or ...

    www.aol.com/lifestyle/digestive-enzymes-really...

    There’s a growing interest in digestive enzymes, but what are these supplements and who needs them? Experts break it down.

  9. Reversible Michaelis–Menten kinetics - Wikipedia

    en.wikipedia.org/wiki/Reversible_Michaelis...

    Enzymes act on small molecules called substrates, which an enzyme converts into products. Almost all metabolic processes in the cell need enzyme catalysis in order to occur at rates fast enough to sustain life. The study of how fast an enzyme can transform a substrate into a product is called enzyme kinetics.