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

Name the group of fungi which belong to fermentation, Truffles, morels and ...

Truffles, morels and the many yeasts that are basic to fermentation processes belong to this group of fungi. These fung are termed as: a) Phycomycetes b) Ascomycetes c)

Dermato phytoses, Dermato phytoses Dermatophytosis (ringworm) is a cos...

Dermato phytoses Dermatophytosis (ringworm) is a cosmopolitan, superficial and highly contagious disease of man, animals and birds. The infection is caused by fungi of three g

Metabolism of carbohydrates, Carbohydrates form the major bulk of human die...

Carbohydrates form the major bulk of human diet and are also the chief sources of energy. Carbohydrates are easily digested and broken down by enzyme action into glucose and are ea

List a few shortcomings of native starches, List a few shortcomings of nati...

List a few shortcomings of native starches which make it unacceptable in certain food applications. Lack of free-flowing properties of water repellence of the starch granules,

Write the meaning of hypoglycemia, Q. Write the meaning of Hypoglycemia? ...

Q. Write the meaning of Hypoglycemia? Hypoglycemia is a Greek term: hypo -meaning less; glyc - means sweet; and emia - means "of the blood". It is a condition in which less th

Psychoactive substance use disorders, PSYCHOACTIVE SUBSTANCE USE DISORDERS:...

PSYCHOACTIVE SUBSTANCE USE DISORDERS: Drug: It is derived from a French word 'drogue'. A medical substance used in the treatment of disease. (Taber's  Dictionary).  'Drug d

Classification, What is omnispective classification

What is omnispective classification

Explain about osseointegration, Explain about Osseointegration Osseoint...

Explain about Osseointegration Osseointegration is regarded as the process of direct bone apposition on implant surfaces where the bone in contact with the implant later underg

Define about the deficiency of cyanocobalamin, Define about the Deficiency ...

Define about the Deficiency of cyanocobalamin? Malabsorption of vitamin B 12 can occur at several points during digestion. By far, the most important condition resulting in v

Define safety points that should used in the laboratory, Define Safety poin...

Define Safety points that should used in the Laboratory? You should be aware of the rules/regulations and the procedures before undertaking any practical work in the laboratory

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