Advertisements
Advertisements
Question
Define the following term:
Osmotic Pressure
Advertisements
Solution
Osmotic pressure is the minimum pressure that must be exerted to prevent the passage of the pure solvent into the solution when the two are separated by a semi-permeable membrane.
RELATED QUESTIONS
Name the following:
Two solutions having same concentrations.
Choose the correct answer:
Plasmolysis will occur when the cell is placed in a __________
Choose the correct answer:
Grapes when placed in a strong sugar solution shrink because of __________
What is the water potential?
Give Reasons for the following.
We gargle with saline water in case of throat infection.
In an experiment, two sets of apparatus were set up as shown below:
In A there is a concentrated sugar solution inside the thistle funnel and red ink in the water outside the funnel. In B there is a concentrated glucose solution with red ink inside the thistle funnel and water outside the thistle funnel.
In both A and B the level of liquid inside the funnels rises up the tubes. In A the sugar solution turns red and in B, the water turns red.
Study the given observations and answer these questions:
- Name the process by which red ink moves in A and B.
- Which type of pressure forces the water molecules to move towards thistle funnels and cause a rise in the water level?
- Where does this process occur in plants and animals?
- What material could be used as a semi-permeable membrane?
Name the following:
Name the process by which water enters the root hair cell.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
During exosmosis, water moves from inside the cell to the outside of the cell.
Fill in the Blank
A plasmolysed cell has __________ protoplast.
Multiple Choice Question:
Osmosis involves:
