Question

Would a cell in a .2% saline solution be in a hyper-, hypo-, or isotonic solution?

Answer 1

0.9 % Nacl is considered isotonic to a cell.

0.2% Nacl is Hypotonic(,0.9%) to the cell.

2% or 3% Nacl is Hypertonic to the cell.( A solution is hypotonic to a cell if it has a lower solute concentration than the cell )

Hence A cell placed in a 0.2 % saline solution will be in a hypotonic solution.Hence Endosmosis Takes place.that is water enters from the saline into the cell,the cell swells up