Answer: Option 4.
The fresh water is hypotonic and the salt solution is Hypertonic.
Explanation:
Hypotonic solution is a solution that have little dissolved solutes i.e low osmotic pressure compare to other solution. When a cell is put in hypotonic solution, it take in water and the cell swell up and it does not burst due to it's cell wall thereby becoming turgid or hard.
Hypertonic solution is the solution where the concentration of solute is higher outside the cell than inside the cell. Example is saline water.when a cell is placed in Hypertonic solution it will shrinks because it losses water.
Louis Pasteur’s experiments has taken a leap on cell biology. He was able to contribute to the concept of cell theory which suggests that cells came from pre-existing cells, cells are the fundamental unit of life and that all life have cells.
Highlighting on pre-existing cells, early before the experiments of Pasteur, there was the theory of spontaneous generation. This theory claims that organisms came from nonliving objects which is now, truly misleading and wrong.
It is necessary to calibrate the ocular micrometer with each objective because the magnification of each objective lens are different. The numerical value is specific and only holds for a specific objective ocular lens. So, they should be checked accordingly.
Answer: The Indian Railways plan to replace the plastic cups at all railway stations to kulhads for the promotion of an environmentally-friendly India that is plastic-free. ... Kulhads in railway stations was introduced in 2014 by the then Union Railways Minister, Shri. Lalu Prasad Yadav.
Hope this helps!
<span> Eukaryotic cells are a lot more complex. They
have a nucleus in a nuclear membrane, where DNA or other genetic
information is stored, as well as lots of organelles that serve
different functions.</span>
