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

Biological oxygen demand - effect on water bodies, Biological Oxygen Demand...

Biological Oxygen Demand - Effect on Water Bodies Addition of biodegradable matter exerts demand on oxygen of the water body. The demand of oxygen is directly related to incre

Explain genetic information that is transmitted hereditarily, Which is the ...

Which is the biological molecule that contains the genetic information that is transmitted hereditarily and controls the cellular functioning? The hereditary molecule that cont

Who is heterozygous at 6 loci, Given an individual who is heterozygous at 6...

Given an individual who is heterozygous at 6 loci, how many different gametic Genotypes are possible? A. 36 B. 12 C. 32 D. 48 E. 64

What is biological contaminants, Q. What is Biological Contaminants? Yo...

Q. What is Biological Contaminants? You may recall reading about food borne diseases caused by the consumption of contaminated food items in the last unit. In the

What is osmotic pressure, What is osmotic pressure? Osmotic pressure is...

What is osmotic pressure? Osmotic pressure is the pressure formed in an aqueous solution by a region of lower solute concentration upon a region of higher solute concentration

What is the life cycle of the schistosome, What is the life cycle of the sc...

What is the life cycle of the schistosome? Male and female adult schistosomes live in blood vessels of the human intestines. The females release eggs that trespass the vessel w

Receptors, Receptors are sense organs that receive stimuli. On the basis...

Receptors are sense organs that receive stimuli. On the basis of their location in body receptors are of following types - 1 .       Extero receptor - Located at or near t

Electronic chip is implanted in the body – vivo and vivo, An electronic chi...

An electronic chip is to be implanted in the body. During in vitro (in the lab) testing it is observed that the chip will dissolve over time if exposed to liquid with similar pH to

Sulphur dioxide emissions, State two ways in which sulphur dioxide emission...

State two ways in which sulphur dioxide emissions from coal-fired generating stations could be reduced. Sulphur dioxide emissions can be reduced by fitting desulphurization pl

Determine the occurrence of vitamin B12, Occurrence of vitamin B 12 Vi...

Occurrence of vitamin B 12 Vitamin B 12 is one of the cobalamin, a group of active principles widely occurring in nature. Vitamin B 12 is present especially in liver, kidney

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