Advertisements
Advertisements
प्रश्न
Fill in the Blank
The pressure which develops in the cortical cells of root which force a part of the water upward ____________.
उत्तर
The pressure which develops in the cortical cells of root which force a part of the water upward Root pressure.
APPEARS IN
संबंधित प्रश्न
Give the equivalent terms for the following:
Pressure of the cell contents on the cell wall
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A&B), the container (A) having water and the other (B) containing concentrated sugar solution. After 24 hours when the cubes were examined, those placed in water were found to be firm and had increased slightly in size and those placed in concentrated sugar solution were found to be soft and had somewhat decreased in size. Use the above information to answer the questions that follow:
Account for the firmness and increase in the size of the potato cubes placed in water.
Distinguish between the following:
Turgor pressure and osmotic pressure
Explain why:
We gargle with saline solution in case of throat infection.
Differentiate between:
Osmosis and Diffusion
The apparatus arranged here 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?
(v) Define the process mentioned in Q. (i) above.
The beaker is divided into two chambers A and B. The big circle represents solute and the small circles solvent.
(i) What can you say about the size of the holes in the membrane, if it is to behave semi- permeably between these two?
(ii) Will the solvent molecules pass through the membrane from left to right, from right to left, in either direction or in both directions?
(iii) In which direction will there be a net movement of solvent molecules?
Give Technical Term for the following.
A solution whose concentration is greater than that of the cell sap.
Fill in the Blanks
Osmosis in the diffusion of _______ molecules from the region of higher _____ potential to that of lower potential across a S.P.M.
Explain the Term: Exosmosis
