The osmolarity of physiological saline solution is 0.30 osmol/l. assuming that the cell membrane is not permeable to its ions, is a 0.185 m aqueous solution of sodium sulfate, na2so4, hypertonic, hypotonic or isotonic to red blood cells? if normal red blood cells were suspended in this na2so4 solution, what would be the expected outcome?

This question have two parts.

Question 1. Is a 0.185 M aqueous solution of sodium sulfate, Na2SO4, hypertonic, hypotonic or isotonic to red blood cells?

Hypotonic because sodium sulfate is a detergent which can cross the lipid bi-layer.

Question 2. If normal red blood cells were suspended in this Na2SO4 solution, what would be the expected outcome?

Hemolysis (Bursting of Red blood cells) will occur due to excessive movement of water inside the cell resulting from sodium sulfate solution.

if you are interested to know more according to scientist read this research paper.

Ann N Y Acad Sci. 2005 Jun;1048:451-2.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.