Ability of urea diffusing across membranes of red blood cell

Reference no: EM1391814

Question: The ability of urea diffusing across membranes of red blood cells ... I was told that urea can easily penetrate the membrane as they are not present in high concentration inside the cell. If I am mistaken, isn't urea a large polar molecule? I thought they would be impermeable to membranes (unless facilitated by channels).

We had a lab experiment on this, recording the haemolysis time of different solutions ...
I used two different concentrations of urea - 0.28M and 1.0M. It was found that 0.28M of urea caused faster cell lysis than 1.0M urea. Why does a less conc. urea haemolysis faster than a more conc. urea?

Reference no: EM1391814

Questions Cloud

Discussion on pseudodominance : Determine pseudodominance and how is it produced through a chromosome deletion and how does bacterial DNA differ from eukaryotic DNA?

Develop the executive summary : Develop the Executive Summary and Section 5, 'Summary, Recommendations and Conclusion', which includes your formal recommendation to the company.

Animal embryo at the eight cell stage : A student encounters an animal embryo at the eight-cell stage. The 4-smaller cells that comprise one hemisphere of the embryo seem to be rotated forty-five degrees and to lie in the grooves between larger, underlying cells.

Experiment on gluconeogenesis : Just completed an experiment on Gluconeogenesis looking at the different precursors. I am a bit stuck on why lactate and alanine might be of different efficiency as gluconeogenic substrates.

Ability of urea diffusing across membranes of red blood cell : The ability of urea diffusing across membranes of red blood cells. I was told that urea can easily penetrate the membrane as they are not present in high concentration inside the cell.

Finding wild type codon : 5-different mutations were derived from base pair substitutions at a single codon. In this codon, the mutant alleles had arginine, leucine.

Homozygous for a mutant allele : A corn plant is homozygous for a mutant allele that results in no pigment in the seed. The mutant is caused through Ds insertion that often exits late in the seed development,

Randomly chosen wearing helmets having lunch at workplace : A safety engineer claims that only 40% of all workers wear safety helmets when they eat lunch at the workplace. Assuming that his claim is right, find the probability that at most 4 out of 6 workers randomly chosen will be wearing their helmets wh..

Relationship between the mean and median : In each of the following scenarios, which would be larger, the mean or median, or would the mean and median be about the same? Provide reasoning--think about the shape of the histogram for the data and how the shape would affect the relationship b..

User Account

All Pages