differentiate between diffusion , osmosis , plasmolysis , deplasmolysis , endocytosis and exocytosis What is the significance of each - Biology - Cell The Unit of Life

Question

differentiate between diffusion , osmosis , plasmolysis ,
deplasmolysis , endocytosis and exocytosis What is the significance
of each in day to day life?

Meera Revankar · Accepted Answer

Osmosis
Diffusion

It involves movement of water
molecules
It is the movement of gaseous
molecules

Occurs through a semi permeable
membrane
Membrane is not needed

Movement from low concentration to high
concentration of solute
Movement from high concentration to low
concentration of solute

In animals, osmosis helps in the
distribution of nutrients and the release of metabolic waste
products In plants, osmosis is responsible for the absorption of
soil water and for the elevation of the liquid to the leaves of the
plant
To create energy Helps in exchange of
gases during respiration, photosynthesis and transpiration

It occurs to short distances
It can occur to long distances

Plasmolysis
Deplasmolysis

When a cell is placed in hypertonic
solution water comes out, from cytoplasm and vacuole Cell membrane
starts shrinking away from the cell wall

In preserving food items in highly concentrated sugar solutions in
the case of jams and jellies
When a plasmolysed cell is placed in
hypotonic solution it starts absorbing water and becomes turgid
This is the reverse of plasmolysis

When a dry grape is placed in hypotonic solution water starts to
enter the grapes and it swells

Endocytosis
Exocytosis

Endocytosis is the movement of particles
into the cell During endocytosis relatively large materials are
moved into the cell by the infolding of the plasma membrane there
are few different types of endocytosis such as pinocytosis and
phagocytosis

Nitrogen fixing bacteria enter the root cells in legumes through
endocytosis
Exocytosis is the movement of particles
out of the cell During exocytosis materials are moved out of the
cell through a fusion of transport vesicles with the plasma
membrane The transport vesicle moves toward and attached to the
membrane releasing the vesicles content in the extracellular
fluid

Secretion of enzymes from pancreatic cells and hormones from
endocrine glands is because of exocytosis

Osmosis	Diffusion
It involves movement of water molecules.	It is the movement of gaseous molecules.
Occurs through a semi permeable membrane.	Membrane is not needed
Movement from low concentration to high concentration of solute.	Movement from high concentration to low concentration of solute.
In animals, osmosis helps in the distribution of nutrients and the release of metabolic waste products. In plants, osmosis is responsible for the absorption of soil water and for the elevation of the liquid to the leaves of the plant	To create energy Helps in exchange of gases during respiration, photosynthesis and transpiration.
It occurs to short distances.	It can occur to long distances.

Plasmolysis	Deplasmolysis
When a cell is placed in hypertonic solution water comes out, from cytoplasm and vacuole. Cell membrane starts shrinking away from the cell wall. In preserving food items in highly concentrated sugar solutions in the case of jams and jellies	When a plasmolysed cell is placed in hypotonic solution it starts absorbing water and becomes turgid. This is the reverse of plasmolysis When a dry grape is placed in hypotonic solution water starts to enter the grapes and it swells.

differentiate between diffusion , osmosis , plasmolysis , deplasmolysis , endocytosis and exocytosis. What is the significance of each in day to day life?