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

Why is it significant that exact copies of dna, Why is it significant that ...

Why is it significant that exact copies of DNA are produced during replication? Producing exact copies make sure that when a cell divides, the offspring cells will receive the

What is cerebral hemorrhage, What is Cerebral Hemorrhage Cerebral hemor...

What is Cerebral Hemorrhage Cerebral hemorrhage is a massive bleeding into the substance of the brain. The most frequent cause is high blood pressure, or hypertension. Other ca

Detailed explanation of effects of air pollution, On living organism  ...

On living organism           Air pollution causes following effects on living organism: (a)   Effects on humans: 1.      Carbon monoxide reduces the oxygen carrying cap

What is colloids and suspensions , What is Colloids and Suspensions ? ...

What is Colloids and Suspensions ? Colloids and Suspensions :  Colloids and suspensions are mixtures in which larger particles replace solutes. Colloids, or colloidal suspe

Why we not inundated with bacterial infections, We are told that every surf...

We are told that every surface we touch is teeming with bacterial cells, and bacteria are found in the pools we swim in, the water we wash with, and on the hands of friends. Why ar

Discuss about the luria nebraska procedure, Discuss about the Luria Nebrask...

Discuss about the Luria Nebraska procedure The Luria Nebraska procedure involves an age and education correction. It is accomplished by computation of a cutoff score for abnorm

Define low water permeability across the luminal membranes, A healthy perso...

A healthy person is on a diet that having of very small amounts of water. A. This person will make a large volume of dilute urine with low amounts of dissolved solutes. B. T

How much time is required for a single cell, How much time is required for ...

How much time is required for a single cell of Detoxivicatium completeium to grown into a population large enough to fill the volume of the earth?

The various types of techniques used in forensic, Discuss the various types...

Discuss the various types of techniques used in forensic biology past and present.

Adenosine diphosphate (adp), ADP is lower energy form of ATP, containing tw...

ADP is lower energy form of ATP, containing two (in spite of the three in ATP) phosphate groups attached to the adenine base and ribose sugar.

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