CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
5
You visited us 5 times! Enjoying our articles? Unlock Full Access!
Question

I have two questions to ask:

1) write the significance of the process of diffusion and osmosis for living organisms.

2)when a deshelled egg is placed in:

A) concentrated solution of salt and sugar , it shrinks why

B) when it is kept in pure water it swells why

Open in App
Solution

2)
A) Eggs are covered with a semi-permeable membrane, which allows water molecules to pass through. When you put a de-shelled egg into a salt water solution, water molecules pass from the egg, through this membrane, into the salt water solution … this will continue to happen till the water density on both sides is the same.

Since the egg is losing water, it will shrink. In other words, the egg is not actually losing any material … other than water.

B)
when it is kept in pure water it swells beacuse it gain water through process of osmosis.
Hope this will help you and you will mark it as brainliest .

1) Diffusion is the tendency of molecules to spread out in order to occupy an available space. Gasses and molecules in a liquid have a tendency to diffuse from a more concentrated environment to a less concentrated environment. Passive transport is the diffusion of substances across a membrane.
Biologists often use the terms "net movement" or "net diffusion" to describe the movement of ions or molecules by diffusion. For example, oxygen can diffuse through cell membranes and if there is a higher concentration of oxygen outside the cell than inside, oxygen molecules diffuse into the cell.


Osmosis (Greek word for ‘push’) is the movement of water between two solutions separated by a membrane which is permeable to water and less permeable or impermeable to the substance (solute) in solution.

Significance of Osmosis
  1. Entry of water in to the roots from the soil takes place by this process.
  2. Cell to cell diffusion of water is controlled through this process.
  3. Young cells require turgid condition for their growth which is fulfilled by osmosis.
  4. Turgidity of cells is maintained by the process of osmosis.



flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Structural Organization of Cells
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon