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

Aortic valvotomy-surgical techniques, Aortic Valvotomy :  These days ...

Aortic Valvotomy :  These days aortic valvotomy even in neonates and critically ill infants is done under cardio pulmonary bypass. Through a median stemotomy, ascending aorta

What is galactosemia, Q. What is Galactosemia? Galactosemia is a geneti...

Q. What is Galactosemia? Galactosemia is a genetic disorder caused by deficient functioning of any of these three enzymes namely galactokinase, galactose -1 - phosphate uridyl

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

Vitamin d, defitionce of vitamin d

defitionce of vitamin d

Explain the queens college step test, Explain the Queens College Step Test?...

Explain the Queens College Step Test? This test can be administered to large groups or those who are incapable of doing a test up till exhaustion. For this test, a bench (41 c

Explain ketoconazole, Explain Ketoconazole It is now seldom used. The ...

Explain Ketoconazole It is now seldom used. The other azoles have fewer adverse effects and are usually preferred. Ketoconazole remains an option for treatment of infections w

Locomotion in echinodermata, Locomotion in Echinodermata Locomotion i...

Locomotion in Echinodermata Locomotion in echinoderms is accomplished through a unique canalicular system which is termed as the water-vascular system. This system is charact

Mycoplasmosis-pigs, Pigs Mycoplasma infection causes arthritis in limb ...

Pigs Mycoplasma infection causes arthritis in limb joints in pigs, while infection with M. hyopneumoniae gave rise to symptoms of coughing and chronic pneumonia and the disease

Which are the phases of the menstrual cycle, Q. Which are the phases of the...

Q. Which are the phases of the menstrual cycle? The menstrual cycle is divided into two major phases: the luteal (or secretory) phase and the follicular (or menstrual) phase.

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