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

Explain scombroid poisoning, Q. Explain scombroid poisoning? Ingestion ...

Q. Explain scombroid poisoning? Ingestion of improperly handled and stored seafood (yellow-fin tuna, skipjack, bonit and mackerel) causes scombroid poisoning. Maitoxin has been

What is the stage of cellular respiration, What is the stage of cellular re...

What is the stage of cellular respiration during which carbon dioxide is liberated? In aerobic cellular respiration the release of carbon dioxide occurs in the transformation o

What is hmp pathway, What is  HMP pathway The HMP pathway like glyco...

What is  HMP pathway The HMP pathway like glycolysis occurs in the cytosol of the cell. However, C02  which is not produced  in glycolysis, is a characteristic product in HMP

Determine the main four events of bone remodeling, Determine the main four ...

Determine the main four events of bone remodeling Quiescence refers to the resting state of the bone surface. This includes all of the bone surfaces. Activation is the recr

Explain the most probable number (mpn), Explain the Most Probable Number (M...

Explain the Most Probable Number (MPN)? MPN is a statistical estimating technique which is based on the fact that more the number of bacteria in a sample, more is the dilution

How is retaining structure used, How is retaining structure used? A ret...

How is retaining structure used? A retaining wall helps in maintaining the surface of the ground at different elevations on either side of the structure. If the retaining wall

How are grasslands classified, How are grasslands classified? Grasslan...

How are grasslands classified? Grasslands might be classified into steppes and savannahs. In the steppes the prevailing vegetation is grass, as in the pampas of South America

Why d scientists pick hydrogen as the basis for mri scanning, Why d scienti...

Why d scientists pick hydrogen as the basis for MRI scanning? Name of the human body that do not appear in an MRI scan. Explain thermal stratification? How does thermal stratifi

Week 5 Review Sheet I, How does true motility differ from brownian movement...

How does true motility differ from brownian movement? What morphological structre is responsible for bacteria motility? Why is the wet preparation discarded in disinfectant s

Types of cell respiration, Q What are the kinds of cell respiration? Th...

Q What are the kinds of cell respiration? There are two types of cell respiration aerobic cell respiration a reaction with participation of molecular oxygen (O2) and anaerobic

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