Investigation on Osmosis
For this investigation, I need to find out how Osmosis works in
potato with different concentrations of sugar.
I think the lower the concentration of sugar solution there is, the
larger the mass of potato will be. This is because the less sugar
there is in the solution the higher the concentration of water there
will be. The potato in high water concentrations (0 molars) will have
a larger increased mass because the water from the solution will go
into the potato.
I think the higher the concentration of sugar solution there is, the
smaller the mass of the potato will be. This is because the more sugar
there is in the solution the less water there will be. The potato in
high sugar concentrations (1.0 molar) will have a larger decreased
mass because the water from the potato will go into the solution.
I think the concentration of sugar solution with an equal amount of
water as the potato will show no change in mass in the potato. I guess
that 0.6 molars is the concentration where there is no change in mass
of the potato.
For my experiment, I will need 12 beakers for my sugar solutions and
to put the potato in. I will also need 12 potatoes for each beaker and
a measuring cylinder to measure the amount of my solutions. I will
need balancers to check the mass of the potatoes before and after my
experiment and I will need a pair of tweezers to put my potatoes in
and out with. I will be doing all six different concentrations twice.
Potatoes grow in the roots of the potato plants and you have to pull
them out.
ANALYSIS
Animal cells are different from plant cells. An animal cell does not
have a cell wall, vacuole or chloroplasts.
Osmosis is the movement of water molecules from an area of a high
water concentration to an area of a low water concentration. Cell
membranes are permeable to water.