Define observation for benedict test - carbohydrates, Biology

Assignment Help:

Define Observation for Benedict Test - Carbohydrates?

An insoluble reddish brown precipitate of cuprous oxide will be obtained. This is similar to Fehling's test.

The reddish brown precipitate indicates the presence of a reducing sugar. All monosaccharides are reducing sugars and thus will give a positive Benedict's test.

Maltose and lactose have a free aldehyde (sugar) group and are thus able to reduce Benedict's reagent.  Sucrose, however cannot reduce the cupric ions in Benedict's reagent since the sugar groups are tied up in a glycosidic linkage.

Just as in Fehling's test, starch cannot reduce Benedict's reagent. Dextrin being a less complex molecule has more free sugar groups and partially reduces Benedict's reagent.


Related Discussions:- Define observation for benedict test - carbohydrates

Phylum apicomplexa - protozoan, Phylum Apicomplexa - Protozoan Charact...

Phylum Apicomplexa - Protozoan Characteristic set of organelles (apical complex) asssociated with the anterior end present in some developmental stages. Cilia and flagella abs

What are transcription process and the replication processes, Q What are th...

Q What are the differences and similarities between the transcription process and the replication processes? A DNA polynucleotide chain serves up as a template in the replication (

How to alternately donating and accepting ions, Select all that are true or...

Select all that are true or correct regarding a buffer: alternately donating and accepting ions a set of chemicals that work together to resist pH change often a weak acid or base

Describe new cardio-vascular risk factors, Describe New Cardio-vascular Ris...

Describe New Cardio-vascular Risk Factors ? The major risk factors contributing to the development of atherosclerotic plaques in blood vessels have been known for many years. H

Is protein collagen has a high proportion of glycine, The protein collagen ...

The protein collagen has a high proportion (20% or more) of A. asparagine and glutamine B. proline and hydroxyproline C. glycine D. both A and B E. both A and C F

Cellular totipotency, Cellular Totipotency The innumerable cells whic...

Cellular Totipotency The innumerable cells which constitute the body of a higher plant or animal and containing identical genetic material can be traced to a single cell-the

Ttt, respiration.

respiration.

What are the synthetic auxins and what are their uses, What are the synthet...

What are the synthetic auxins and what are their uses? The Synthetic auxins like naphthalenic acid (NAA) and indolebutyric acid (IBA) are substances similar to IAA (a natural a

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