Advertisements
Advertisements
Question
Given below is the figure of an experimental set up to demonstrate root pressure.
(i) Define root pressure.
(ii) What change would you observe in the water level after some time?
(iii) What role is being played by the root pressure in the given experiment?
(iv) Why the oil has been sprinkled on water?
Advertisements
Solution
(i) The collective force exerted by the cortical cells of the root in forcing water upward into the xylem is known as root pressure.
(ii) The water level will rise in the glass tube.
(iii) Root pressure is forcing the water up in the stem.
(iv) To prevent evaporation of water from the tube.
APPEARS IN
RELATED QUESTIONS
Differentiate between Diffusion and Osmosis (Definition)
Differentiate between Turgor pressure and Wall pressure (explain)
The following diagram represents a plant cell after being placed in a strong sugar solution.
Guidelines 1 to 5 indicate the following
(1)Cell wall, (2) Strong sugar solution, (3) Protoplasm (4) Large vacuole, (5) Nucleus
(1)What is the state of the cell shown in the cell shown in the diagram?
(2)Name the structure which acts as a selectively permeable membrane.
(3)If the cell had been placed in distilled water instead of strong sugar solution, which feature would not have been seen?
(4)Name any one feature of this plant cell which is not present in an animal cell.
Name the following:
The process by which raisins swell up when placed in a beaker of water.
What is the significance of diffusion?
Give Reasons for the following.
Salt and sugar are used in preserving food.
Give Reasons for the following.
The raisins swell up in the water.
Name the following:
Condition of cell in which the cell content are shrunken.
Fill in the Blank
Raisin swells up when kept in a __________ solution.
