Question

DEFINE OSMOSIS..............❤❤❤❤❤❤❤❤❤❤❤❤❤​

Answer 1

$\huge\bf\pink{ANSWER:-}$

Step by step Explanation

$\huge\bold{DIFFUSION}$

➡️Spontaneous movement of molecules from a region of high concentration to the region of low concentration is called diffusion

➡️It takes place in solid, liquids, gases

➡️ Semipermeable membrane is not required

$\huge\bold{OSMOSIS}$

➡️Movement of water molecules from a region of high concentration through a Semipermeable membrane to region of low concentration is called osmosis

➡️It takes place only in liquid

➡️ Semipermeable membrane is required

There are two kinds of osmosis, namely:-

$\huge\bold{Endosmosis}$

➡️The solution where more water is present outside the cell than inside of it is called hypotomic solution

➡️Water molecules are free to move both in and out of the cell

➡️In this kind of solution more water molecules will move out of the cell and less water will enter the cell

➡️ Osmotic entry of water inside cell is called Endosmosis

➡️As a result the cell will swell up (because more water will enter the cell)

$\huge\bold{Exosmosis}$

➡️The solution where more water is present inside of the cell than outside of it is Hypertonic solution

➡️ Water molecules are free to move in and out of the cell

➡️In this solution more water molecules will move out of the cell and less will enter the cell

➡️ Osmotic exit of water outside cell is called exosmosis

➡️As a result cells will shrink (because move water leaves the cell and less enters in)

Answer 2

$\huge\underline\textsf{Osmosis:-}$

• Osmosis is a special case of diffusion through a selectively permeable membrane.

• The passage of water from a region of higher water concentration through a selectively permeable membrane to a region of low concentration till equilibrium is reached is known as osmosis.