What is the function of volutin granules?
What is the function of volutin granules?
Volutin granules, sometimes termed metachromatic granules because of their colour reaction with the dyes used in light microscopy, contain polymerized inorganic phosphate, an energy-rich compound that acts as a reserve store of energy and of phosphate.
How is metachromatic granules beneficial to bacteria?
Metachromatic granules – polymetaphosphate inclusions found in many bacteria. Their presence is useful in identification of the diphtheria bacillus. Mesosomes – irregular convoluted invaginations of the cell membrane; functions include a role in DNA replication, and secretion.
What is the function of ribosome in bacteria?
A ribosome functions as a micro-machine for making proteins. Ribosomes are composed of special proteins and nucleic acids. The TRANSLATION of information and the Linking of AMINO ACIDS are at the heart of the protein production process.
What is the function of volutin in bacteria?
In bacteria: Cytoplasmic structures Volutin, or metachromatic granules, contains polymerized phosphate and represents a storage form for inorganic phosphate and energy.
What is the function of Volutin granules in a cell?
Volutin granules are characteristically present in diphtheria bacilli. Their function is uncertain. They have been considered to represent a reserve of energy and phosphate for cell metabolism but they are most frequent in cells grown under conditions of nutritional deficiency and tend to disappear when the deficient nutrients are supplied.
How are Volutin granules used to isolate corynebacteria?
Volutin granules. Volutin granules are an intracytoplasmic storage form of complexed inorganic polyphosphate, the production of which is used as one of the identifying criteria when attempting to isolate Corynebacterium diphtheriae on Löffler’s medium. Polyphosphate granules display the metachromatic effect, appearing red when stained…
What kind of energy is stored in volutin?
Volutin, or metachromatic granules, contains polymerized phosphate and represents a storage form for inorganic phosphate and energy. Many bacteria possess lipid droplets that contain polymeric esters of poly-β-hydroxybutyric acid or related compounds.