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प्रश्न
During a practical exam, a plant cell in a particular solution was placed under a compound microscope. Students were told to observe the cell and name the tonicity of the solution and mention the process that occurred in the cell.
विकल्प
Isotonic, Endosmosis
Hypotonic, Active Transport
Hypertonic, Endosmosis
Hypertonic, Exosmosis
उत्तर
Hypertonic, Exosmosis
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?
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A&B), the container (A) having water and the other (B) containing concentrated sugar solution. After 24 hours when the cubes were examined, those placed in water were found to be firm and had increased slightly in size and those placed in concentrated sugar solution were found to be soft and had somewhat decreased in size. Use the above information to answer the questions that follow:
Account for the firmness and increase in the size of the potato cubes placed in water.
Define the following:
Hypertonic solution
Name the following:
Movement of molecules from a region of high concentration to a region of low concentration.
Explain why:
We gargle with saline solution in case of throat infection.
Give at least three uses of water to green plants
Name the following:
Condition of cell in which the cell content are shrunken.
Multiple Choice Question:
In the process of osmosis in a cell:
DPD of a cell can be expressed as ______
