Question

Der sulphus
with
relation be
ent?
erstanding
Key words
in water,
Diffusion, Osmosis, p.
don, Osmosis, Permeability, Semi Permeable, Solute, Saturated solution
What we have learnt?
One with
hate Crys
ompare
und KM
d write
cell needs various solids, liquids and gases.
The plasma membrane is not permcable to all the substance
The materials are transported across the membrane by the necess
ansported across the membrane by the process called diffusion,
osmosis and other methods.
sses are useful in daily life also. Air freshners, agarbathi, mosquito
repellents works on the principle of diffusion.
1. Reverse osmosis work on the principle of osmosis.
Osmosis does not take place in dead cells.
mat
ind
Improve your learning
1. The structure which controls the entry and exit of the materials through the cell is (AS
(a) Cell wall (b) Cell membrane (c) Both (d) None of the
2. Fill in the blanks (ASI)
-​

Answer 1

Answer:

b]cell membranes

Explanation:

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