Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
The transport of water with dissolved minerals from the root to other aerial parts like stem and leaves, against gravity, is called translocation or ascent of sap.
संबंधित प्रश्न
The figure given below is a diagrammatic representation of a part of the cross section of the root in the root hair zone. Study the same and then answer the questions that follow
(i) Name the parts indicated by the guidelines 1 to 4.
(ii) Which is the process that enables the passage of water from the soil into the root hair?
(iii) Name the pressure that is responsible for the movement of water in the direction indicated by the arrows. Define it.
(iv) Due to an excess of this pressure sometimes drops of water are found along the leaf margins of some plants especially in the early mornings. What is the phenomenon called?
(v) Draw a well labelled diagram of the root hair cell as it would appear if an excess of fertiliser is added to the soil close to it.
Correct the following statements by changing the underlined words:
Xylem transports starch from the leaves to all parts of the plant body
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
The cell wall of the root cell is a differentially permeable membrane.
Explain the mechanism of closing and opening of the stomata.
What would happen to the root hair of a potted plant if the soil was watered with an extremely concentrated solution of sodium chloride?
The apparatus arranged alongside signifies an important process.
(i) Name the process.
(ii) Where does this process occur in plants?
(iii) What solution is placed inside the dialysis tubing?
(iv) What happens to the level of the solution in the capillary tube?
Choose the correct answer:
Meaning of ascent of sap is ____________
Choose the correct answer:
Wilting of plants occurs when ____________
Write a note on the morphological structure of the root.
Give other name of epidermal cells in roots of plants.
