Advertisements
Advertisements
Question
Fill in the Blanks
Diffusion is the movement of molecules from a region of their ________ concentration to the region of their ________ concentration.
Advertisements
Solution
Diffusion is the movement of molecules from a region of their higher concentration to the region of their lower concentration.
APPEARS IN
RELATED QUESTIONS
Name the following:
The condition of a cell placed in a hypotonic solution.
Define the following:
Osmosis
Distinguish between the following:
Filtration and diffusion
Distinguish between the following:
Hypotonic and Hypertonic solutions
Choose the correct answer:
If a marine plant is transferred to fresh water, it bursts due to ___________
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?
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?
Give Technical Term for the following.
The condition in which the water from a cell is completely removed due to exosmosis and no more shrinkage is possible.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Cells that have lost their water content are said to be deplasmolysed.
Explain the Term: Exosmosis
