A piece of apparatus used for measuring the rate at which a plant shoot takes up water is called Potometer or Osmometer.
Important Questions on Transport in Plants
Distinguish between :
Transpiration and perspiration.
Give one point of difference between the following pairs on the basis of what is given in brackets.
Cobalt chloride paper and goats bladder (process where it is used).
Study the set-up given alongside and answer the following:
What will happen to the mercury level after 2 hours if the set-up is kept in sunlight?
Figure represents the vertical section of a leaf.
Name the structure shown in the leaf section.
The diagram represents a certain physiological process in plants.
Name the process.
Three plants A, B and C are placed in a beaker containing coloured water. The water in each beaker is covered with a layer of oil. The leaves were removed from plant B while plant C was exposed to strong light.
(a) In which plant, A. B or C, would the water move up fastest?
(b) In which plant would water move slowly?
(c) Why is the water covered with oil?
(d) What is being investigated by this experiment?
The diagram represents a certain physiological process in plants.
Why is the pot covered with a polythene bag?
More transpiration occurs from the lower surface of a dorsiventral leaf.
