Advertisements
Advertisements
Question
Give Reasons for the following.
Plants begin to die when the excess of soluble fertilizers are added to the soil?
Advertisements
Solution
Excess application of soluble fertilizers in soil makes the soil solution hypertonic than cell sap, hence exosmosis takes place and plants begin to die.
APPEARS IN
RELATED QUESTIONS
Differentiate between the following:
Plasmolysis and deplasmolysis
Give two examples of turgor movements in plants.
The diagram given below represents an experimental set-up to demonstrate a certain process. Study the same and answer the questions that follow:
- Name the process.
- Define the above-named process.
- What would you observe in the experimental set-up after an hour or so?
- What control experiment can be set up for comparison?
- Keeping in mind the root hair, cell and its surroundings, name the parts that correspond to
- concentrated sugar solution
- parchment paper
- water in the beaker
- Name any other material that can be used instead of parchment paper in the above experiment.
- Mention two advantages of the process for the plants.
Distinguish between the following:
Turgor pressure and osmotic pressure
Distinguish between the following:
Hypotonic and Hypertonic solutions
Name the following:
The pressure with which the molecules of a substance diffuse.
A leaf cell of a water plant was placed in a liquid other than pond water. After sometime, it assumed a shape as shown below:
Comment on the nature (tonicity) of the liquid surrounding the cell.
Give Technical Term for the following.
The condition in which the water from a cell is completely removed due to exosmosis and no more shrinkage is possible.
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:
Diffusion
