Explain agar - algal polysaccharides, Biology

Assignment Help:

Agar

Agar is a polysaccharide found in the cell walls of some red algae and is unusual in containing sulfated galactose monomers. Certain marine algae of the class Rhodophyceae, called Red Sea weeds are the source of this polysaccharide. Some of the chief algal sources are Gelidium cartilagineum, Gracilaria conferroides and Pteroclaia capillcea. The structure and composition of the agar extract of Gelidium amansii showed that it is composed of two major fractions - agarose, a neutral polymer and agaropectin, a charged, sulfated galactan (Galactose, 3-6-anhydrogalactose). The ratios of these two polymers vary widely and the percentage of agarose in agar-bearing seaweeds ranges from 50% to 90%.  The composition of agar is discussed herewith along with the structure as shown in the figure.   

 

409_biology.png


Related Discussions:- Explain agar - algal polysaccharides

What benefits can commensalism offer to a species, What benefits can commen...

What benefits can commensalism offer to a species? Commensalism may include obtainment of food (for instance, the innocuous bacteria of the human gut), shelter or support (epip

History of cell biology, HISTORY OF CELL BIOLOGY Scientific knowledge gro...

HISTORY OF CELL BIOLOGY Scientific knowledge grows with the development of new tools and techniques for studying various physical and biological processes. This is true also of t

Explain enzyme glutamate oxaloacetate, Enzyme  glutamate oxaloacetate tran...

Enzyme  glutamate oxaloacetate transaminase catalyzes  the  reaction between glutamate and oxaloacetate with the formation of a-ketoglutarate and aspartate due to transfer  of one

Define general purpose and specialized culture media, Define General Purpos...

Define General Purpose and Specialized Culture Media? General purpose media - These support the growth of many microorganisms. Example: nutrient agar, trypic soy agar etc. S

Physiological condition for growth, PHYSIOLOGICAL CONDITION FOR GROWTH - ...

PHYSIOLOGICAL CONDITION FOR GROWTH - It depends on anabolism and cetabolism. If anabolism is more positive growth. If both are balanced growth is zero. If cetabolism is more

Nutrient intake during constipation, Q. What about the fluid and other nutr...

Q. What about the fluid and other nutrient intake during constipation? The fluid intake should be at least 2 litres daily. This includes fluid as foods and beverage besides wa

Treatment of water for industrial use, Water is widely used in various proc...

Water is widely used in various process applications in industry. Other major industrial uses are boiler feed water and cooling water. The king and degree of treatment of water in

Explain the infarct exclusive technique, Explain the Infarct Exclusive Tech...

Explain the Infarct Exclusive Technique? Infarct Exclusive Technique :  Left ventriculotomy is done through the infarcted area. No attempt is made to close the ventricu

Kingdom, how many kingdom and phylum are there?

how many kingdom and phylum are there?

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