Q. 25.0( 3 Votes )

A leaf cell of a water plant was placed in a liquid other than pond water. After some time, it assumed a shape as shown below:



(a) Give the term for the state of the cell it has acquired.

(b) Comment on the nature (tonicity) of the liquid surrounding the cell.

(c) Redraw in the space provided, the diagram of the cell if it is soon placed in ordinary water for some time.

Answer :

(a) The term for the state of the cell it has acquired in the given diagram is plasmolyzed.

A plasmolyzed cell is the cell whose cell content has shrunken from its cell wall (in case of plant cells as shown in the diagram) due to exosmosis of water.


(b) Plasmolysis is the result of exosmosis of water thus; the tonicity of the liquid surrounding the cell is hypertonic.


A hypertonic solution is a solution surrounding the cell which has a higher solute concentration than the concentration of solutes inside the cell. Consequently, the water molecules from the interior of the cell will move out leading to the plasmolysis of the cell.


(c) If this plasmolysed cell is soon placed in ordinary water it will regain its turgidity and will be deplasmolysed.



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Champ Quiz | Examining the Life ProcessesChamp Quiz | Examining the Life ProcessesChamp Quiz | Examining the Life Processes43 mins
Genius Quiz | The Vital ProcessesGenius Quiz | The Vital ProcessesGenius Quiz | The Vital Processes38 mins
Know About Your Food Digestion !Know About Your Food Digestion !Know About Your Food Digestion !62 mins
Transportation in Plants & AnimalsTransportation in Plants & AnimalsTransportation in Plants & Animals38 mins
Genius  Quiz | Heartless PlantGenius  Quiz | Heartless PlantGenius Quiz | Heartless Plant49 mins
Quiz | Knowing the Nature of RootsQuiz | Knowing the Nature of RootsQuiz | Knowing the Nature of Roots44 mins
Champ Quiz | Vital Processes of LifeChamp Quiz | Vital Processes of LifeChamp Quiz | Vital Processes of Life42 mins
Know More on NutritionKnow More on NutritionKnow More on Nutrition48 mins
We can't make our food!We can't make our food!We can't make our food!44 mins
Get Amazed by the power of 'e'Get Amazed by the power of 'e'Get Amazed by the power of 'e'40 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses