In an experiment, two sets of apparatus were set up as shown below:
In A there is concentrated sugar solution inside the thistle funnel and red ink in the water outside the funnel.
In B there is 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:
(i) Name the process by which red ink moves in A and B.
(ii) Which type of pressure force the water molecules to move towards thistle funnels and cause rise in the water level?
(iii) Where does this process occur in plants and animals?
(iv) What material could be used as semi-permeable membrane?
