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प्रश्न
Study the experimental setup in the figure and then answer the question that follow.
Explain the phenomenon mention in question 8.1 .
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उत्तर
Osmosis is the movement of water molecules from their region of higher concentration (dilute solution) to their region of lower concentration (concentrated solution) through a semipermeable membrane.
संबंधित प्रश्न
How is root hair adapted for the absorption of water from the soil?
Three plants (a), (b) and (c) were placed in beakers containing coloured water. The water in each beaker was covered with a layer of oil. The leaves were removed from plant (b), while plant (c) was exposed to strong light.
(i) In which plant, (a), (b) or (c) would the water move up the fastest?
(ii) In which plant (a), (b) or (c), would the water move up slowly?
(iii) Why was the water covered with a layer of oil?
(iv) What is being investigated by this experiment?
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
If the phloem of a twig is removed keeping the xylem intact, the leaves of a twig wilt.
How is root hair structurally adapted for absorption of water from the soil?
Given below is an experimental demonstration.
(i) Which phenomenon has been demonstrated in the given figure?
(ii) What is the solute and what is solvent in the above experiment?
(iii) Define the phenomenon in Q. (i) above.
(iv) Give one example from your daily life experiences based on this principle.
Give Technical Term for the following.
Phenomenon of absorption of water by surface attraction.
Name the following:
Water is absorbed from the soil by which part.
How many regions are there in a typical root?
Look at Figure. Draw another figure of the same set-up as would be observed after a few hours.
Name the following:
Unicellular outgrowths from the epidermis of roots.
