Using conventration of water explain a) why a cell shrinks when placed in a hypertonic salt solution b) why a cell swells when placed in a hypotonic salt solution c) why a cell does not change in volume when place in an isotonic salt solution
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Q. What is the consequences of the following conditions= a. A cell containing higher water concentration than the surrounding medium. b. A cell having low water concentration than the surrounding medium. c. A cell having equal water concentration to it surrounding medium.
Madhur L.
Which word means a solution that has less salt than the thing you are comparing it to? A) Isotonic B) Hypertonic C) Hypotonic 2. If a cell at 2% salt is placed in a solution of 1% salt, what will happen? A) the cell will expand B) the cell will stay the same C) the cell will shrivel 3. Which term describes the thing LOST when a plant shrivels? A) turgor pressure B) crenation C) hemolysis D) plasmolysis 4. A slice of potato becomes stiff after being placed in a solution. What happened? A) the cell walls of the potato stiffened to prevent water loss B) water entered the potato cells providing extra pressure C) starch from the potato was drawn into the solution and was replaced by water D) all of the above
Anand J.
Solution concentration can be described in terms of tonicity. Solutions are hypertonic, isotonic, or hypotonic to cells. A hypertonic is one that has a greater concentration of solute outside the cell and therefore a lower concentration. Water will leave the cell, to the outside environment. This is one reason why organisms that live in fresh water cannot survive in salt water, the ocean. Water will leave the organism’s cells and eventually the cells will undergo plasmolysis and the organisms will die. An isotonic solution is a balanced solution. That is, the solution concentration is balanced with the solution inside the cell. Finally, when a cell is surrounded by a hypotonic solution, concentration of solute is greater inside the cell, concentration of water greater outside. Water moves into the cell and the cell swells. If enough water enters, the cell can burst. On Day 2, the egg was placed in 10% salt water. Based on the student data, what type of solution would we label 10% salt water in this case? A) hypertonic B) hypotonic C) isotonic D) saline
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