Given below is an apparatus used to study a particular process
in plants. Study the same and answer the questions that follo
(i)Name the apparatus.
(ii)Mention one limitation of this apparatus.
(iii) Which phenomenon is studied with the help of this apparati
(iv)What is the function of the part marked reservoir?
(v)What is the role of the air bubble in the experiment?
Answers
Answer:
(i) Garreau’s Potometer.
(ii) The capillary tube should be properly dipped into the water.
(iii) Transpiration.
(iv) It is used to ad just the position of air bubble in graduated capillary tube.
(v) The movement of air bubble in graduated tube in a minute gives the rate of transpiration.
Answer:
Hey here is your answer
Explanation:
(I) This is a Potometer also know as transpirometer .
(ii) The potometer does not measure the rate of transpiration accurately because not all of the water that is taken by the plant is used for transpiration (water taken might be used for photosynthesis or by the cells to maintain turgidity).
is studied
(III) The rate of transpiration is measured by a potometer, called Ganong's potometer.
(iv) Reservoir helps the air bubble to travel back to the start of the measuring scale when the experiment is repeated.
(v)The air bubble in Ganong's potometer is to mark the progress of transpiration and absorption of water by the freshly cut leafy twig which must be devoid of any roots.
Hope this answer will help you. All the best