what will happen when we put onion peel and RBCs seperately in hypotonic solution
Angella:
This one is almost same like the earlier one, right ?
but answers are different in meritnation
Oh! what do you think - same answer or different answers ?
I've seen those answers now. Both of them convey the same concept.
but the cell of onion have cell wall due to which there will be no change in shape of cell
yes! I agree.
I'm deleting that question. This one seems better!
Answers
Answered by
18
when onion peel and rbc cells are kept in a hypotonic solution then the rbc cells swell and sometimes they may burst but the onionpeel as it has cell wall it swollen but do not burst
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9
Hypotonic solutions are the solutions with lesser solute concentration and with higher water potential.
Water always moves from higher water potential region to lower water potential region.
In this case,
higher water potential region - hypotonic solution
lowe water potential region - onion peel and RBCs
So, the water from the hypotonic solution moves into onion peel and RBCs(separately).
This process is called endosmosis.
Since, onion peel cells possess cell wall, they resist the hydrostatic pressure created by the water entering into the cell. So, they just turn turgid and maintain a rigid shape but do not burst.
While, the RBCs have no cell wall and can't resist the pressure created by the water entering in. So, they bulge and bulge and finally burst.
Water always moves from higher water potential region to lower water potential region.
In this case,
higher water potential region - hypotonic solution
lowe water potential region - onion peel and RBCs
So, the water from the hypotonic solution moves into onion peel and RBCs(separately).
This process is called endosmosis.
Since, onion peel cells possess cell wall, they resist the hydrostatic pressure created by the water entering into the cell. So, they just turn turgid and maintain a rigid shape but do not burst.
While, the RBCs have no cell wall and can't resist the pressure created by the water entering in. So, they bulge and bulge and finally burst.
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