Question

both questions

Use the diagram below to answer questions 24 and 25. 5% NaCl 10% NaCI 24. How does the tonicity of the solution in the circle compare to the solution in the beaker? * 2 points It's hypertonic O It's hypotonic It's osmotonic It's isotonic OTwo of the above points 25. If the circle in the diagram above were an animal cell, what would happen to it? O O O The cell would become turgid The cell would lyse The cell would plasmolyze The cell would become crenated O O The cell would hydrolyze pointal. The cells on page 6 are plant cells. Would you say

Answer 1

24. Two of the above .

Hypertonic and isotonic

Hypertonic means the solution in which cells are placed contains more solute than the solution placed inside.

10% NaCl solution is present in the beaker and 5% NaCl solution is present in the circle which is placed in the beaker .

10% NaCl means it contains 90% water and 10% NaCl ,less solvent (water )and more solute( NaCl) than 5% NaCl which contains 95% water and 5% NaCl .

If the solution outside the cell contains the same solute as the solution placed inside the cell ,then the solution is called isotonic solution.

In this case, both the solutions contains NaCl as solute, so it is called isotonic .

25. The cell would become crenated.

When animal cells are placed in hypertonic solution , the cell loses water and become crenated as the cells shrivel up.

Plasmolysis occurs in plant cells when they lose water.When animal cells are placed in hypotonic solution , cells gets swelled ( turgid) and because of tension inside the cells , it might lyse .