Explain the process of solubility test, Biology

Assignment Help:

Explain the Process of Solubility test?

This test is given by all monosaccharides and disaccharides. Polysaccharides are not soluble in cold water.

Principle

All monosaccharides are soluble in water and insoluble in non polar substances. Since glucose, fructose and galactose are monosaccharides they will be soluble in water. Disaccharides readily dissolve in water. Starch is insoluble in cold water. In hot water it makes a colloidal solution. Dextrin being a less complex molecule is more soluble than starch.

Test

 Reagents Required 

  Methodology

Observation

Solubility test

 

 - Glucose, fructose, galactose powder, lactose, maltose, sucrose, starch.

 - Distilled water (hot and cold)

Take a 10 ml test tube and put a little glucose powder in it. Add about 2 ml of distilled water to test the solubility of the sugar in cold water. Repeat this with fructose and galactose separately. Try dissolving the sugars in hot distilled water.

A clear solution of all the three sugars will be observed both with hot and cold water. All

Monosaccharides are soluble in water.

Disaccharides readily dissolve in water.

Starch is insoluble in cold water. In hot water it forms a colloidal solution.

Dextrin being a less complex molecule is more soluble than starch.

 

 

 


Related Discussions:- Explain the process of solubility test

Explain membrane-bound organelles, Membrane-bound organelles are absent in ...

Membrane-bound organelles are absent in : 1. Saccharomyces 2. Streptococcus 3. Chlamydomonas 4. Plasmodium Streptococcus

Psychological aspects of tooth loss, The psychological effects of total ede...

The psychological effects of total edentulism are complex and varied, and range from very minimal to a state of neuroticism. Although complete dentures are able to satisfy the esth

Egestion, After the food intake is over, the food gets digested, assimilate...

After the food intake is over, the food gets digested, assimilated and finally egested through the kidneys and anus. The urinary system: • Filters waste materials from the blood

Explain the use of trichomoniasis in pregnancy, Use of trichomoniasis in pr...

Use of trichomoniasis in pregnancy Trichomoniasis in pregnancy has been associated with adverse pregnancy outcomes (D Soper, Am J Obstet Gynecol 2004; 190:281). Metronidazole

What are the androecium and the gynoecium, What are the androecium and the ...

What are the androecium and the gynoecium? What are the other structures of flowers? Androecium is the set of male reproductive structures of flowers. It comprehends the stamen

Determine food sources for zinc, Determine Food Sources of Zinc? Zinc i...

Determine Food Sources of Zinc? Zinc is normally associated with the protein and/or nucleic acid fraction of foods. Thus, foods high in proteins are good sources of zinc. Lean

Use recombinant dna technology, name two examples of biotechnology that use...

name two examples of biotechnology that use recombinant DNA technology and two examples that do nnot

Digestion of fats, Digestion of fats   A.  Production of bile salts in ...

Digestion of fats   A.  Production of bile salts in the liver and the secretion of those bile salts into the small intestine.   B.  Production of lipase in the pancreas and

Explain digestion system, DIGESTION Digestive enzymes break down food p...

DIGESTION Digestive enzymes break down food particles into smaller units. You will see  that the final breakdown products of protein digestion are single amino acids or small c

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