Define observation or inference for barfoed test, Biology

Assignment Help:

Define observation or inference for barfoed test?

1. Reddish brown precipitate is seen on the sides and bottom of the tube. The precipitate of the sides and bottom indicates the presence of monosaccharides.

2. Disaccharides are weak reducing agents and therefore do not reduce cupric ions in an acidic medium. Hence Barfoed's test is used to differentiate between disaccharides and monosaccharides. .

3. Monosaccharides being strong reducing agents can reduce cupric ions in acidic medium without enediols. This is a specific test for monosaccharides so polysaccharides do not respond to the test.

 

 


Related Discussions:- Define observation or inference for barfoed test

The wall of left ventricle of an infants heart, Because of developmental ab...

Because of developmental abnormality, the wall of left ventricle of an infant's heart is as thin as that of right ventricle. What would be its explicit effect on circulation of blo

Draw a diagram of external view of a human brain, Draw a diagram of externa...

Draw a diagram of external view of a human brain. Label:- frontal lobe, temporal lobe, occipital lobe and cerebellum.

Absorbing surface of the small intestine is increased, State three ways in ...

State three ways in which the absorbing surface of the small intestine is increased.   The absorbing surface of the small intestine is increased by:- (a) being very long

Define platyhelminthes - larval stages of fasciola hepatica, Platyhelminthe...

Platyhelminthes - Larval Stages of Fasciola Hepatica and Taenia Solium? You have already studied the representative species of classes Turbellaria, Trematoda and Cestoda of Ph

Explain counter stain - ziehl-neelsen method, Explain Counter Stain - Ziehl...

Explain Counter Stain - Ziehl-Neelsen Method? Methylene blue is used to stain previously decolourized cells. All non acid-fast bacteria de-stained by acid alcohol now absorbs c

Why does the ingestion of alcohol increase diuresis, Q. Why does the ingest...

Q. Why does the ingestion of alcohol increase diuresis? Alcohol inhibits the secretion of ADH that is antidiuretic hormone by the pituitary that is why when it is drunk to exce

5.4 assessment from the book, Briefly explain why cutting a flatworm into p...

Briefly explain why cutting a flatworm into pieces would not kill it

Atp is directly requiredin which processes in muscle, ATP is DIRECTLY requi...

ATP is DIRECTLY required in which of the following processes in muscle? A. Net flux of sodium ions from intracellular space to extracellular space. B. Detachment of myosin h

What are the symptoms causes of fever, During a fever in a human, A. sh...

During a fever in a human, A. shivering can happen when the actual body temperature is higher than the set point for body temperature during the fever. B. the control system

Cell Coat, What role would a cell coat play if it was a part of a city?

What role would a cell coat play if it was a part of a city?

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