What is the biological importance of hexuronic acids?
a, structural elements of glycosaminoglycans
b, formation of pentoses under decarboxylation
c, components of nucleic acids
the source of amino sugars
d, participation in detoxycation pathways in liver
Answers
Answer:
Hexuronic acid is any uronic acid derived from a hexose. These include fructuronic acids, galacturonic acids, glucuronic acids, guluronic acids, iduronic acids, mannuronic acids, and tagaturonic acids. In the early 1900s, ascorbic acid (vitamin C) was also known as hexuronic acid. This is no longer the case.
(a) Glycosaminoglycans (GAGs) are linear acidic polysaccharides that are classified according to their structure into four distinct families: the heparin/heparan sulfate GAGs (HSGAGs), the chondroitin sulfate and dermatan sulfate galactosaminoglycans (GalAGs), keratan sulfate, and hyaluronic acid.
(c)Nucleic acids are giant biomolecules made of monomers called nucleotides. Nucleotides have three components: pentose sugar (5-carbon sugar), phosphate group, and nitrogenous base. The nucleic acids are of two major types: natural and synthetic nucleic acids.