An Investigation on How Different Levels of Sugar Concentration Can Affect Potato Cells

An Investigation on How Different Levels of Sugar Concentration Can Affect Potato Cells

AIM:

My aim for this experiment is to see the results of potato tissue's

mass difference, when placed in different concentrations of sugar

solutions. Also my aim for this experiment is to estimate the

concentration of cell sap within the potato cells.

Variables involved:

For this experiment I would expect to have 3 different variables,

Independent, Dependent, and fixed variables, which all help me to plan

and explain the experiment thoroughly.

1. The Independent variable

(These are things you can change in the experiment), the thing that I

will be changing in this investigation into the factors affecting

osmosis, is the concentrations of the solution that helps me to

investigate osmosis with potato tissues. The different sugar

concentrations will be changed to see the result of the potatoes when

placed in sugar solutions placed in different molarities

(concentration strengths).

2. Dependent Variable

(These are things that you measure in your experiment) the things that

I’ll be measuring in this experiment on osmosis are the mass change

and length change of the potatoes placed in different molarities of

sugar solutions. I will record the masses in grams by using a balance

and the length changes by using a ruler. I will be measuring the mass

of the potato chips in my experiment because I want to see the potato

chips mass difference when placed in different concentrations of sugar

solutions.

3. Fixed Variables

(Things that you keep the same) the things that I have chosen to keep

the same in each individual experiment to keep it a fair test is to

keep the same sizes of each potato tissue the same by using the same

cork borer and a ruler. I will keep the potato chips the same size in

my experiment because by keeping the sizes of the potato chips the

same it ensures that osmosis will occur on the same amount of surface

area of every potato chip, this will allow me to investigate how only