LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

CELL BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When the smell of perfume spreads throughout a room, it is an example of ____
A
passive transport
B
diffusion
C
active transport
D
osmosis
Explanation: 

Detailed explanation-1: -Diffusion: Perfume particles mix with the particles of air. Due to diffusion, the particles of smelly gas are free to move quickly in all directions. So, The fragrance of perfume spreads in a room.

Detailed explanation-2: -These particles very quickly circulate the room while the perfume spreads. It is this tendency of gases to quickly occupy any volume or space that is called diffusion.

Detailed explanation-3: -The smell of perfume travels when the particles of perfume, mix among the particles of air by colliding with each other and bouncing off in all directions. This mixing process is called diffusion., until they are evenly spread out. This causes the smell of perfume to travel in the air surrounding it.

Detailed explanation-4: -Diffusion is the tendency of gas molecules to occupy the entire volume available to them.In other words we can say it’s the mixing of two substances on their own. The molecules of perfume diffuse with air and reach us with the movement of air particles.

There is 1 question to complete.