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प्रश्न
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उत्तर
Root Pressure is the pressure exerted on the liquid contents of the cortical cells of the root, under fully turgid condition, forcing a quantity of water into the xylem vessels and through them upwards into the stem up to a certain height.
Demonstration of Root pressure:
(a) Take a well matured healthy herbaceous plant.
(b) The stem of the plant is cut a few centimeters above the base with a sharp knife and attached to a manometer through a rubber tube.
(c) After a few hours, the level of mercury rises in the manometer.
(d) This is due to the pressure created by water exuded from the cut end of the plant on account of root pressure generated due to entry of water in the root cells.
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संबंधित प्रश्न
Differentiate between the following:
Guttation and bleeding
What part is played by The cytoplasm in the uptake of water into the root hair?
The diagram below represents a layer of epidermal cells showing a fully grown root hair. Study the diagram and answer the questions that follow:
Mention one distinct difference between the parts labelled A and B.
The below figure shows a root hair:
(i) Label the parts 1 to 4.
(ii) What is the role of part 4?
(iii) Why is the root hair one-celled?
(iv) What will happen to the root hair if some fertilizer is added to the soil near the root hair?
Give Technical Term for the following.
Tissue which transports manufactured food from leaves to other parts of the plant.
Multiple Choice Question:
The most widely accepted theory for ascent of sap is ______.
Write a note on the morphological structure of the root.
Identify the zone in wbkh root hair occurs.
____________ regions are present in a typical root.
