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effects of concentration on the rate of osmosis
effects of concentration on the rate of osmosis
effect of concentration on rate of osmosis investigation
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Investigating The Effects Of Concentration On Osmosis
Preliminary Experiment: The Effects Of Osmosis On Potato Chips
==============================================================
Method :
We cut three potato chips to an equal length and then we set up 3
beakers, one containing a sugar solution, one containing water and one
containing a salt solution. We put one chip in each beaker and left
overnight.
Results :
Solution
Start (cm)
End (cm)
Difference
% Difference
Sugar
4.8
4.4
-0.4
-8%
Water
5
5.6
+0.6
+12%
Salt
5
4
-1
-20%
Conclusion:
The water moved into the chip cells so the size increased, the salt
solution was a lower concentration so the water moved out of the chip,
this also happened to the sugar solution.
Experiment To Determine The Concentration Of The Cell Sap Of Potato
Introduction:
I am trying to find out the exact concentration of water in the cell
sap of a potato cell. My preliminary experiment will help with this as
I already know that distilled water moves in to the cell while a sugar
solution causes water to move out of the cell.
Prediction:
I think that a sugar solution of 0, the potato cell will increase,
between 0-1, the potato will stay the same and a concentration of 1 or
above, the potato cell will decrease in size. I think this because in
osmosis, water moves from a high concentration to a low concentration
of water.
Apparatus:
6 test tubes to put the solutions in
Distilled water to put a potato chip in
A solution of 0.2Molar to put a potato chip in
A solution of 0.4Molar to put a potato chip in
A solution of 0.6Molar to put a potato chip in
A solution of 0.8Molar to put a potato chip in
A solution of 1Molar to put a potato chip in
When the cell has all the water it can take inside of it the osmosis
- The nurse’s mistake will increase the saltiness due to the double amount of saline in the bag.
...ond sets of data concluded that sucrose, glucose, and salt are hypotonic solutions that will remove water from a cell due to their tonicity. In the final part of the lab, results concluded that water potential moves along its concentration gradient (high to low) in an attempt to maintain equilibrium. It was determined that the orange and green solutions were hypotonic as they added water to the cells, whereas the blue, red, purple and yellow solutions were hypertonic as they sucked water from the cells.
Considering the fact that Marc has both been sweating and drinking minimal amounts of water, Marc is now dehydrated. This means he has less than the required amount of water for his body to complete the processes necessary to maintain its health. As stated in the question, the process of sweating causes the loss of more water than solutes. This means that as the level of water decreases, the level of solute concentration will increase, creating a change in the water to solute ratio.
Osmosis and Diffusion Investigation Aim: To examine the process of osmosis and diffusion. Part A: Step 1: Q1.[IMAGE] Q2. The jiggling motion is visible because the fat globules are constantly being bombarded by smaller particles. [IMAGE] Q3.
The Effect of Solute Concentration on the Rate of Osmosis Aim: To test and observe how the concentration gradient between a potato and water & sugar solution will affect the rate of osmosis. Introduction: Osmosis is defined as, diffusion, or net movement, of free water molecules from high to low concentration through a semi-permeable membrane. When a substance, such as sugar (which we will be using in the experiment we are about to analyse), dissolves in water, it attracts free water molecules to itself, and in doing so, stops them from moving freely. The effect of this, is that the concentration of (free) water molecules in that environment goes down. There are less free water molecules, and therefore less water molecules to pass across a semi-permeable membrane, through which sugar molecules and other molecules attached to them are too big to diffuse across with ease.
Osmosis Experiment Planning Aim: The main subject that I will be planning to investigate is the effects of a concentrated sucrose solution on potato cells on the basis of the Osmosis theory. Background knowledge: The plant cell and its structure To understand osmosis in detail I will need to explain the plant cell (which is the cell included in the osmosis experiment) and its cell membrane. Below I have a diagram of a plant cell: [IMAGE] Osmosis is about the movement of particles from a higher concentrated solution to a lower concentrated solution to create an ethical balance via a partially or semi permeable cell membrane. Osmosis in simple terms is the exchange of particles between the cytoplasm inside the cell and the solution outside the cell. What makes this exhange is the partially permable cell membrane.
An Investigation of Factors Affecting the Rate of Osmosis Introduction Osmosis is the movement of water molecules across a semi permeable membrane from a region of high water concentration to a region of low water concentration. [IMAGE] A semi permeable membrane is a membrane with very small holes in it; they are so small that only water molecules can pass through them. Bigger molecules such as glucose cannot pass through it. In actual fact water molecules pass both ways through the membrane, but because there are more water molecules in the high concentration region than the other there is a steady net flow into the lower concentration region. The lower concentration is the stronger solution, such as a glucose solution.
molecules go in and out of the cell. There is no net movement of water
cork borer and a ruler. I will keep the potato chips the same size in
Investigate the factors affecting the rate of Osmosis Planning Osmosis is the diffusion of water from a lower concentration of solute to a higher concentration of solute, through a partially permeable membrane. In a high concentration of water the amount of solute (e.g. sucrose) is low. This could be called a weak or dilute solution. In a low concentration of water the amount of solute is high. This could be called a strong or concentrated solution.
An Experiment to Investigate Osmosis in Plant Tissue. Aim: To conduct an investigation to compare the osmotic behavior of the osmotic animal. two types of plant tissue in varying concentrations of sucrose. solution. Then we can find the solution.
when to do it etc. This should lead me to good results at the end of
Size of potato-will be the same as it will be cut using a cork and borer which cuts them all to the same diameter.