Given alongside are diagrams of plant cells as seen under the microsco

1.	Given alongside are diagrams of plant cells as seen under the microscope after having been placed in two different solutions:(i) What is the technical term for the condition of: 1. Cell A2. Cell B? (ii) From the solutions given in brackets (water, strong sugar solution, 1% salt solution) name the solution into which : 1. Cell A 2. Cell B was placed before being viewed under the microscope. (iii) Under what conditions in the soil will the root hair cell resemble : 1. Cell A2. CellB ? (iv) Name the pressure responsible for the movement of water from the root hair cell to the xylem of the root. How is it set up ? (v) Name the pressure that helps in the movement of water up the xylem of the root.
Answer» (i) The technical term for the condition of cell A is Turgid cell and for the condition of cell B is plasmolysed cell or flaccid cell. (ii) Cell A was placed in water solution where as cell B was placed in strong sugar solution before being viewed under the microscope. (iii) The root hair cell will resemble with cell A in the condition when the field is over flooded. The root hair cell will resemble with cell B in the case of excessive application of fertilizers in the fields. (iv) Root Pressure is responsible for the movement of water from the root hair cell to the xylem of the root. Root pressure is built up due to cell to cell osmosis in the root tissues. As one turgid cell presses the next cell, the force of the flow of water increases inward. When the water reaches the xylem vessels, it enters the pores of their thick walls with considerable force. (v) Cell to cell difference of osmotic pressure helps and turgor pressure in the movement of water up the xylem of the root.

Given alongside are diagrams of plant cells as seen under the microscope after having been placed in two different solutions:(i) What is the technical term for the condition of: 1. Cell A2. Cell B? (ii) From the solutions given in brackets (water, strong sugar solution, 1% salt solution) name the solution into which : 1. Cell A 2. Cell B was placed before being viewed under the microscope. (iii) Under what conditions in the soil will the root hair cell resemble : 1. Cell A2. CellB ? (iv) Name the pressure responsible for the movement of water from the root hair cell to the xylem of the root. How is it set up ? (v) Name the pressure that helps in the movement of water up the xylem of the root.

Answer»

(i) The technical term for the condition of cell A is Turgid cell and for the condition of cell B is plasmolysed cell or flaccid cell.

(ii) Cell A was placed in water solution where as cell B was placed in strong sugar solution before being viewed under the microscope.

(iii) The root hair cell will resemble with cell A in the condition when the field is over flooded. The root hair cell will resemble with cell B in the case of excessive application of fertilizers in the fields.

(iv) Root Pressure is responsible for the movement of water from the root hair cell to the xylem of the root. Root pressure is built up due to cell to cell osmosis in the root tissues. As one turgid cell presses the next cell, the force of the flow of water increases inward. When the water reaches the xylem vessels, it enters the pores of their thick walls with considerable force.

(v) Cell to cell difference of osmotic pressure helps and turgor pressure in the movement of water up the xylem of the root.

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