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

Coagulation - blood collection , Coagulation - Blood Collection : Plasm...

Coagulation - Blood Collection : Plasma is used to minimize the time needed for coagulation so it is used is medical emergencies. There are many types of anticoagulants used

Stock concentration of dopamine, a) A cat has just arrived to the veterinar...

a) A cat has just arrived to the veterinary clinic with low blood pressure. The cat weighs 5 kg, and as the on call Vet you want to use a bag of saline to prepare a dopamine drip f

What is linkage, Question Write a short note on the following: 1 D...

Question Write a short note on the following: 1 Dihybrid cross 2 Supplementary interaction 3 Maternal effect 4 Hardy Weinberg Equilibrium 5 What is Linkage? Ex

Protozoans and cnidarians, compare and contrast the structure of the follow...

compare and contrast the structure of the following: hyrda plain, hydra mematocysts, obelia, amoeba, euglena, paramecium caudatum conjugation, euglena acus.

Cell biology, explain the relationship between concentration gradient and a...

explain the relationship between concentration gradient and active and passive transport

Non-recurrent type, Non-recurrent Type As mentioned earlier it refers...

Non-recurrent Type As mentioned earlier it refers to embryo development in reduced embryo sacs. The mechanisms identified for such cases are: Reduced Pseudogamy : The

Explain the characterstics of acute ar murmur, Explain the characterstics o...

Explain the characterstics of Acute AR Murmur ? Characteristic: Relatively low pitched, decrescendo diastolic murmur, which may end part way through diastole. These murmurs ar

Which of groups is not ionizable, Which of the following groups is NOT ioni...

Which of the following groups is NOT ionizable? Select one: a. Guanidinium b. Imidazole c. Phosphoryl d. Amine e. Aldehyde

What are the benefits of plant-incorporated protectants, What are the benef...

What are the benefits of plant-incorporated protectants? Plant-incorporated protectants can be a promising pest management alternative where traditional pesticides may not be a

Nutritional management for gastro oesophageal reflux disease, Q. Nutritiona...

Q. Nutritional Management for gastro oesophageal reflux disease? As mentioned above the nutrient requirements remain the same as per the RDI for most patients. It would be impo

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