Question

a red blood cell in a hpertonic solution will shrink involume as it undergoes crenation. In a hypotonic solution, a redblood cell will swell and possiblyburst as it undergoes hemolysis.Predict the effect on a red blood cell( either crenation,hemolysis, or nonethat the following solutions would have.a. 2% NaCLb.H2Oc. 5% glucosed.1% glucosee. 10% glucose

Answer 1

A red blood cell is isotonic with 0.9 % NaCl solutionthat means the concentration of blood is equal to the concentrationof 0.9 % NaClsolution.
The number of moles of NaCl present 0.9 % solution =(0.9g/58.5g/mol) mol=0.0154 molThe concentration of0.9 % NaCl solution =0.0154 mol/0.1 L=0.154MThe total concentration of solute patricles = 1.54 *2=0.308Ma) 2% NaCL has more concentration than blood cellso the water molecules flow from red blood cell to NaClsolutionthen ared blood cell will shrink involume as it undergoes crenation by the effect of 2%NaCl.
b) H2O has less concentration than red blood cell (0.9% NaCl)sowater molecules flow from water into red bloodcell then a redblood cell will swell as it undergoeshemolysis.c) The concentration of 5% glucose = (5g/180g/mol)/0.1L=0.27MThe concentration of 5% glucose is less than red bloodcell so water molecules flow fromglucose solution intored blood cellthen a red blood cell will swell as itundergoes hemolysis.d) The concentration of 1% glucose is also lessthan red blood cell so water molecules flow fromglucosesolution into redblood cell then a red blood cell willswell as it undergoes hemolysis.e) The concentration of 10 % glucose =(10g/180g/mol)/0.1 L=0.54MThe concentration of 10% glucose ismore than redblood cell so water molecules flow fromred bloodcell solutioninto glucose then ared bloodcellwillshrink in volume as it undergoescrenation.