Biology
Grade-9
Easy
Question
Deodorant smell spreads in the room. This is an example of___________.
- Diffusion
- Active transport
- Osmosis
- Movement of particles with an extra energy
Hint:
Example of diffusion
The smell of perfumes/Incense Sticks is sprayed in one part of a room, yet soon it diffuses so that you can smell it everywhere.
The correct answer is: Diffusion
Diffusion
It is the random movement of molecules of gas and liquid.
Characteristics of diffusion
(a) It is a random process
(b) Molecule diffuse from high to low, and even low to high
But the net direction is from high concentration to low Concentration
(c) It is a slow process
(d) It doesn’t depend on the living system
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