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प्रश्न
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Osmosis is defined as the movement of water from a concentrated sugar solution to a dilute sugar solution.
विकल्प
True
False
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उत्तर
False
Correct Statement: Osmosis is defined as the movement of water from a dilute sugar solution to a concentrated sugar solution.
संबंधित प्रश्न
Osmosis and diffusion are the same except that osmosis there is:
Give reason for the following:
Potato cubes, when placed in water, become firm and increase in size.
Leaves of the sensitive plant wilt and droop down on a slight touch. What mechanism brings about this change?
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.
Define the following:
Diffusion
Name the following:
Two solutions having same concentrations.
Give Reasons for the following.
It is necessary to maintain a normal osmotic concentration of the blood.
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?
Multiple Choice Question:
When a plant wilts, the sequence of events will be as follows:
