Biology Dictionary

  • Allosteric control

    Allosteric control

    Regulation of an enzyme by binding of a molecule at a site other than the active site; affects plant metabolic…

  • Allosteric regulation

    Allosteric regulation

    Modulation of enzyme activity through binding at non-active sites; important in plant biochemistry.

  • Allotetraploid

    Allotetraploid

    An organism with four sets of chromosomes derived from two different species; common in hybrid plant species.

  • Allozymes

    Allozymes

    Different molecular forms of an enzyme that are coded by different alleles at the same gene locus; used in plant…

  • Alpha (a) helix

    Alpha (a) helix

    A common secondary structure in proteins, stabilized by hydrogen bonds; found in plant and other eukaryotic proteins.

  • Alcohol dehydrogenases (adh)

    Alcohol dehydrogenases (adh)

    Enzymes involved in the anaerobic pathway of alcohol fermentation in plant tissues.

  • Alcoholic fermentation

    Alcoholic fermentation

    An anaerobic process in which sugars are converted into ethanol and carbon dioxide by plant cells and microbes.

  • Alcoholism

    Alcoholism

    A chronic disease in humans involving alcohol dependency; not applicable to botany.

  • Aldehyde

    Aldehyde

    An organic compound containing a carbonyl group bonded to a hydrogen; intermediates in plant metabolic pathways.

  • Aldose

    Aldose

    A simple sugar (monosaccharide) containing an aldehyde group; examples include glucose.