Advertisements
Advertisements
प्रश्न
Multiple Choice Question:
Plasma membrane controls:
पर्याय
Passage of water only
Passage of water and solutes in and out of the cell
Passage of water and solutes into the cell
Movement of cell contents out of the cell
उत्तर
Passage of water and solutes in and out of the cell
APPEARS IN
संबंधित प्रश्न
A candidate in order to study the process of osmosis has taken 3 potato cubes and put them in 3 different beakers containing 3 different solutions. After 24 hours, in the first beaker the potato cube increased in size, in the second beaker the potato cube decreased in size and in the third beaker there was no change in the size of the potato cube. The following diagram shows the result of the same experiment:
(i) Give the technical terms of the solutions used in beakers, 1, 2 and 3.
(ii) In beaker 3, the size of the potato cube remains the same. Explain the reason in brief.
(iii) Write the specific feature of the cell sap of root hairs which helps in absorption of water.
(iv) What is osmosis?
(v) How does a cell wall and a cell membrane differ in their permeability?
Complete the following statements:
Hypotonic solution is one in which the solution kept outside the cell has lower solute concentration than ……………… the cell.
Differentiate between the following:
Plasmolysis and deplasmolysis
Give two examples of turgor movements in plants.
Define the following:
Diffusion
Fill in the Blank
When there is no movement of water in the cell from the outside medium, the medium is considered to be ______ to cell sap.
Fill in the Blanks
Diffusion is the movement of molecules from a region of their ________ concentration to the region of their ________ concentration.
Explain the Term: Osmosis
Define the following term:
Osmotic Pressure
