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 the use of bacterial vaginosis in pregnancy, Use of Bacterial vagin...

Use of Bacterial vaginosis In pregnancy  Bacterial vaginosis has been associated with premature labor and complications of delivery, and symptomatic bacterial vaginosis in preg

Explain about vascular cambium, How can the age of a tree be estimated from...

How can the age of a tree be estimated from the analysis of the rings present on a cross section of its stem? For the growth of the tree it is essential to have formation of ne

Define protein stabilized food emulsions, Define Protein Stabilized Food Em...

Define Protein Stabilized Food Emulsions? Many food products are emulsions (eg. milk cream, ice creams, cream, butter etc.) and protein constituents often play a major role in

What are the major plant tissues, What are the major plant tissues that for...

What are the major plant tissues that form the rings observed on stem sections of some trees? The rings observed on a stem cross section of the dicot trees are made of conducti

Parthenogenesis- asexual reproduction, Normal 0 false false ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Nitrogen cycle, Nitrogen is very important constituents of all organisms li...

Nitrogen is very important constituents of all organisms life  because it forms the structural parth of proteins, nucleic acids and chlorophyll molecules.               Earth 's

Making individual rock collections, Making individual rock collections ...

Making individual rock collections Peoples should be encouraged to make their own collection of rocks. Small pasteboard or cigar boxes will serve to be the collections. The spe

Sona, characters of phylum protozoa

characters of phylum protozoa

Rna secondary structure, Most  RNA  molecules  are  single-stranded  but  a...

Most  RNA  molecules  are  single-stranded  but  an  RNA  molecule  should  hold regions  that  can  form  complementary   base  pairing  where  the  RNA  strand loops  back  on  i

Urine examination of the diabetes patient, Q. Urine Examination of the diab...

Q. Urine Examination of the diabetes Patient? Generally when blood testing facilities are not available, urine is tested for the presence of sugar. A urine sample shows presenc

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