Monosaccharide derivatives, Biology

Assignment Help:

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.

Related Discussions:- Monosaccharide derivatives

Defects in human development, Defects in Human Development 1) For inst...

Defects in Human Development 1) For instance, when a pregnant woman drinks alcohol her embryo is exposed to similar concentration of alcohol as is in her blood. The alcohol ma

Explain fusion inhibitor, Fusion inhibitor  After HIV binds to the host...

Fusion inhibitor  After HIV binds to the host cell surface, a conformational change occurs in the transmembrane glycoprotein sub- unit (gp41) of the viral envelope, facilitatin

Explain alkaline butt -carbohydrate utilization pattern test, Explain Alkal...

Explain Alkaline Butt -carbohydrate utilization pattern test? Alkaline slant (red) and alkaline butt (red) or no change (orange-red) butt- Instead of carbohydrates, peptone in

What is the significance of the epiglottis in human body, What is the signi...

What is the significance of the epiglottis in human body? What happens to the glycogen concentration in the liver cells when the level of adrenaline enhances in the blood strea

Main opportunistic diseases that can affect aids patients, Q. What are the ...

Q. What are the main opportunistic diseases that can affect AIDS patients? Among the opportunistic diseases that affect HIV contaminated people during the AIDS stage some are:

Function of noradrenaline in consciousness, Q. Function of Noradrenaline in...

Q. Function of Noradrenaline in consciousness? Increased level of noradrenalin is implicated in wakefulness. Locus coeruleus noradrenergic neurons decrease their rate of firing

Which aqueous solution has the lowest ph, The aqueous solution with the low...

The aqueous solution with the lowest pH is: Select one: a. 0.01 M HCl. b. 0.1 M acetic acid (pKa = 4.86). c. 0.1 M formic acid (pKa = 3.75). d. 0.1 M HCl. e. 10 t

Determine the greater palatine nerve and vessel, Greater Palatine nerve and...

Greater Palatine nerve and vessel  The greater palatine nerve runs forward in a groove on the inferior surface of the hard palate to communicate with nasopalatine nerve in inci

Describe g-protein, Which of the following is true for a G-protein? A. ...

Which of the following is true for a G-protein? A. When an agonist binds to the binding site of a G-protein-coupled receptor (GPCR), this leads to GDP displacing a GTP bound to

Wace, Excretory organ of lizard.

Excretory organ of lizard.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd