Observation or inference for half and full saturation test, Biology

Assignment Help:

Define Observation or Inference for half and full saturation Test?

1. Starch is precipitated by half saturation with ammonium sulfate whereas dextrin is not precipitated. This test can be used to detect dextrin.

2. Starch and dextrin are both precipitated with ammonium sulfate. When colloids are dissolved in water, they get hydrated with water. A salt like ammonium sulfate has greater affinity for water and hence on addition to a solution of colloid, it precipitates the colloid from solution. The degree of hydration is proportional to the surface area of the colloid, which in turn is inversely proportional to the size of the colloidal molecule. Thus, starch being a larger molecule compared to dextrin, is precipitated even by half saturation with ammounium sulfate while dextrin is precipitated only when fully saturated with ammounium sulfate.

 


Related Discussions:- Observation or inference for half and full saturation test

What is tall t-wave, Q. What is Tall T-Wave? It has been reported that ...

Q. What is Tall T-Wave? It has been reported that tall T-wave during or after exercise indicate inferior wall ischaemia. However, Ellestad reports the findings that tall T-wav

What is rationale for menu planning, What is Rationale for Menu Planning? ...

What is Rationale for Menu Planning? 'Menu', as we all know, is nothing but a list of dishes planned for preparation, and forms the very core of all activities in the food serv

What are sensory receptors, Q. What are sensory receptors? Sensory rece...

Q. What are sensory receptors? Sensory receptors are structures specialized in the acquiring of information, mechanical pressure, like temperature, pH, luminosity and chemical

Fourth week to eight week - embryonic development, Fourth Week to Eight Wee...

Fourth Week to Eight Week - Embryonic Development The common changes in body shape and plan of the embryo from fourth week to eighth week are displayed in Figure. The fourth

Illustrate the technique of radiographic template, Technique of radiographi...

Technique of radiographic template 1. Block any severe interdental undercuts or spaces with wax. Soak the patient's diagnostic cast with wax up in slurry. (Slurry is the super

Differences between genomes in prokaryotes and eukaryotes, What are the dif...

What are the differences between genomes in prokaryotes vs. eukaryotes?

Is herbivorism a form of predatism, Q. Is herbivorism a form of predatism? ...

Q. Is herbivorism a form of predatism? The Herbivorism is a form of predatism in which first order consumers feed from producers (plants or algae). For instance, fruits and bir

Define isomerases, Isomerases These  enzymes (code  EC 5)  catalyze geo...

Isomerases These  enzymes (code  EC 5)  catalyze geometric  or  structural  changes  within  a molecule. According  to the  type of  isomerism,  they  may be  called  racemases

Define about the iodine toxicity, Define about the Iodine Toxicity? A w...

Define about the Iodine Toxicity? A wide range of iodine intakes is tolerated by most individuals, owing to the ability of the thyroid to regulate total body iodine. This toler

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