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प्रश्न
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.
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उत्तर
(1) The process is called osmosis.
(ii) This process occurs in the root hair cells of plants.
(iii) The solution placed inside the dialysis tubing is generally strong sugar solution or salt solution.
(iv) The level of the solution in the capillary tube rises above the original level.
(v) Osmosis is a physiological process where the water molecules or solvent molecules move through a semi-permeable membrane from a solution having a higher concentration of solvent molecules to the solution having a lower concentration of water or solvent molecules.
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संबंधित प्रश्न
Complete the following statements:
Hypotonic solution is one in which the solution kept outside the cell has lower solute concentration than ……………… the cell.
Distinguish between the following:
Turgor pressure and osmotic pressure
Name the following:
Two solutions having same concentrations.
Name the following:
Condition of cell in which the cell contents are shrunken.
Choose the correct answer:
If a marine plant is transferred to fresh water, it bursts due to ___________
Two potato cubes each 1 cm3 in size, were placed separately in two containers (A and 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 somewhat decreased in size. Use the above information to answer the questions that follow:
Account for the softness and decrease in size of the potato cubes which were placed in sugar solution.
What is the water potential?
Give Technical Term for the following.
Solutions which have the same osmotic pressure.
Give Technical Term for the following.
The pressure which is responsible for the movement of water molecules across the cortical cells of the root.
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.
