Monosaccharide derivatives, Biology

MONOSACCHARIDE DERIVATIVES

They are modified monosaccharides.

GLYCOSIDES

  • They are compounds formed by condensation reaction between a sugar and hydroxyl group of another substance which may be a sugar, a sterol, glycerol, methyl alcohol, etc.
  • Streptomycin is a glycoside.
  • Other medicinally important ones are cardiac glycosides.

ALCOHOLIC SUGAR

  • When aldehyde group of monosaccharide is converted into alcohol (OH) group, then it is called alcoholic sugar.
  • Glucose → Sorbitol
  • Mannose → Mannitol
  • Reduction of aldehyde and ketone group converts a sugar into sugar alcohol.
  • Ascorbic acid or vitamin C is sugar acid.
  • Glucouronic acid and iduronic acid are components of chondroitin sulphate, cell wall and gums.

AMINO SUGARS (HEXOSAMINES)

  • When -OH group of second carbon converted into -NH then it is called amino sugar.
  • Glucose → Glucosamine
  • They are generally formed by replacement of hydroxyl group at carbon 2 with amino group (-NH ).
  • Glucosamine is the most common amino sugar that occurs in chitin, fungal wall and hyaluronic acid.
  • Galactosamine is used in synthesis of cartilage.
  • Mannosamine is found in mucoprotein.
  • Amino sugars also occur in some antibiotics.
Posted Date: 10/9/2012 3:29:21 AM | Location : United States







Related Discussions:- Monosaccharide derivatives, Assignment Help, Ask Question on Monosaccharide derivatives, Get Answer, Expert's Help, Monosaccharide derivatives Discussions

Write discussion on Monosaccharide derivatives
Your posts are moderated
Related Questions
Explain some Physiological Changes during Pregnancy? A whole new life begins at conception. Organ systems develop rapidly and nutrition plays many supportive roles. Pregnancy f

Define Classifications of carbohydrates based on number of aldehyde? Classification based on the presence of aldehyde or ketone group Carbon atoms Aldos

Explain in detail about the term behavioural neuropsychology Behavioural neuropsychology has been explained as 'the application of behaviour therapy techniques to problems of o

Blotting method to detect particular one proteins Ans) Western blotting

Determine the Symptoms of bacillus cereus Extremely large numbers (10 8 per gram) of viable cells of B. cereus must be ingested to develop signs and symptoms of the syndrome.

Synthesis of fatty acids requires the movement of citrate out of the mitochondria. This occurs under conditions of high levels of acetyl CoA which is needed to stimulate the activi

Title Legal aspects in obstetrical ultrasound  Introduction Obstetric ultrasound is an essential component of antenatal care and it is widely perceived to be associated

Describe Class Ophiuroidea in general way? Brittle stars have a central disc with five long, thin, flexible arms that can be detached from the body at will in times of danger.

Define Requirements of Carbohydrates during Surgery? Carbohydrates: Carbohydrates are needed to build up glycogen stores and spare the proteins for tissue synthesis, Around GO%

Define Nutritional Demands of Sports and Dietary Recommendations? There is a strong relationship between nutritional status and physical training. Whether it is to maintain hea