Question

(g) Given below is an experimental setup
to study a particular process.
Strong sugar
solution
Tap water
- Cellophane
(i) Name the process.
(ii) Define the above named process.
(iii) What would you observe in the
experimental setup after an hour
or so?
(iv) What control experiment can be
setup for the above experiment?
(v) Mention two advantages of this
process to the plant.
[5]​

Answer 1

Answer:

(i) Osmosis

(ii) The movement of water molecules from a region of their higher concentration to a region of their lower concentration through a semi-permeable membrane.

(iii) the level of the solution inside the cellophane has increased.

OR

The level of tap water outside has decreased.

(iv) The control can be:

Tap water inside the cellophane pouch and the same tap water outside the cellophane pouch.

(v) 1. This allows the roots to absorb water and ions from the soil.

    2. The root pressure developed, helps in the ascent of sap.

Explanation: