Cell membranes are semipermeable, and osmosis is an ongoing process in the body.

Question

Cell membranes are semipermeable, and osmosis is an ongoing process in the body. Differences in osmotic pressure inside and outside a red blood cell can result in crenation (shriveling) or hemolysis (rupture). (a) The diagram below shows three solutions: an isotonic solution, a hypertonic solution, and a hypotonic solution. Place the appropriate red blood cell in each solution. isotonic solution hypertonic solution hypotonic solution (b) Given that blood exerts the same osmotic pressure as a 0.15 M NaCl solution, which of the following could be the contents of the second beaker? 0.008 M NaCI solution 0.68 M NaCl solution 0.15 M NaCI solution

Explanation / Answer

(a)

Isotonic = Cell resemble perfect doughnut shape. i. e first one

Hypertonic = Cell looks spiky and shriveled i. e third one

Hypotonic = Cell is swollen and exploding. i. e second one

(b)

The hypertonic beaker will have a higher concentration in it's surrounding fluid.

So the correct Option is 'B' i. e 0.68 M

Thank you

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