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What is the function of sucrose in the homogenization buffer during fractionation of cells?

Sucrose in the homogenization buffer helps to create a hypertonic environment, which helps to maintain the osmotic balance of the cell during the fractionation process. It also provides a medium for cell disruption and organelle separation due to differences in buoyant densities.


Why using phosphate buffer and magnesium sulphate and calcium chloride and ferric chloride for dilution water in BOD5 test?

Phosphate buffer helps maintain the pH of the dilution water, which is crucial for proper bacterial activity in the BOD5 test. Magnesium sulfate, calcium chloride, and ferric chloride provide essential nutrients for the bacteria to thrive and efficiently break down organic matter during the test. These chemicals help create an environment that supports the growth and metabolic activity of the microorganisms responsible for oxygen consumption in the BOD5 test.


Is the carbonate or the calcium the buffer in calcium carbonate?

The carbonate. Calcium is neutral.


What is the recommended proteinase K buffer recipe for optimal enzymatic activity in a biological sample?

The recommended proteinase K buffer recipe for optimal enzymatic activity in a biological sample typically includes Tris-HCl, calcium chloride, and sodium chloride. This buffer helps maintain the stability and activity of proteinase K, an enzyme that breaks down proteins in the sample.


Function of a frame buffer in computers?

function of a frame buffer in computer?


Does the pH of phosphate buffer change on addition of sodium chloride?

The pH of a phosphate buffer may change slightly upon addition of sodium chloride, as chloride ions can compete with the buffer components for interaction with water molecules, affecting the buffer capacity. However, the change in pH would likely be minimal if the amount of sodium chloride added is small compared to the buffer solution.


Is calcium carbonate a buffer?

Calcium carbonate is not considered a buffer because it is a weak base that can neutralize acids, but it lacks the ability to maintain a stable pH in a solution. Buffers are composed of a weak acid and its conjugate base or a weak base and its conjugate acid, which work together to resist changes in pH.


Why is ammonia-sodium chloride buffer solution is added in the determination of total hardness of water?

Ammonia-sodium chloride buffer solution is added in the determination of total hardness of water to prevent interference from other ions that may be present in the water sample. It helps to maintain a constant pH level, ensuring the validity of the hardness test results. Additionally, the buffer solution can help stabilize the complexation reactions between the calcium and magnesium ions in the water sample with the chelating reagent used in the hardness test.


Does NaCl change the pH of a buffer solution?

The water solution of sodium chloride is neutral.


What is the role of NaCl in TBST buffer?

In this case sodium chloride form an isotonic solution.


What is the function of a buffer?

to resist drastic changes in the pH of a solution


What is the function of ssc buffer?

SSC buffer increases ionic strength so precipitation of DNA or RNA is increases.CHARUSAT UNIVERSITY.