<br/> -You have discovered a new cell whose membrane is permeable

to K+, and urea, but not to Na+, glucose and Cl-. The concentration of each solute is listed in the table below. During an experiment, the cell is placed in a 300 mOsM solution consisting of equal parts Na+ and glucose. 

 
[Na+] mOsM : 50
[K+] mOSM : 80
[urea] mOSM : 120
[glucose] mOSM : 20
[Cl-] mOSM : 30
Cell


 
Based on this information, answer the following questions:
a.       What is the osmolarity of the cell in mOsM? (0.5 marks)


b.       In one word, describe the osmolarity of the solution compared to the cell. (0.5 marks)


c.       In one word, describe the tonicity of the solution compared to the cell. (0.5 marks)
Both have same tonicity, therefore it is hypertonic
d.       Will osmosis occur in this scenario? If so, Indicate the direction of osmosis and describe the changes that will occur to cell volume (if any). (1 mark)
e.       Is the following statement true or false: A hyperosmotic solution that contains only non-penetrating solutes will always be hypertonic? (0.5 marks)
 


please provide detailed explanations with all formula's used.
thank you