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प्रश्न
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
Given below is the diagrammatic representation of the transverse section of a part of a plant. Study it and answer the questions that follow:
(a) Name the part of the plant that is shown
(b) Label the parts 1 to 6
(c) Write the functions of parts 3 and 5
Choose the correct answer:
An example of a selective permeable membrane is __________
Choose the correct answer:
Wilting of plants occurs when ____________
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Xylem is the water-conducting tissue in plants.
Multiple Choice Question:
Water will be absorbed by the root hairs when:
Describe structure of root hair.
Define: Root hair
Which part of the root helps in the maximum absorption of water and minerals?
The tubular, colorless delicate prolongations of epidennal cells are seen in which region of root in plants?
