Osmosis Potatoes Essays and Term Papers
Last update: July 31, 2014-
Osmosis and Potatoes
Osmosis is a specialised form of diffusion. Water moves from an area of LOW concentration of Solute to an area of HIGH concentration of solute through a semi-or fully permeable membrane by the process. Water moves constantly through the cell’s membrane its estimated that about 250 times the volume of a single cell moves through 1 per second This continues until the solute concentration reaches equilibrium It is convenient to express the available energy per
Rating:Essay Length: 1,233 Words / 5 PagesSubmitted: November 24, 2009 -
Osmosis in Potatoes
Potato Osmosis Introduction: A shipwrecked sailor is stranded on a small desert island with no fresh water to drink. They know they could last without food for up to a month, but if they didn't have water to drink they will be dead within a week. Hoping to postpone the inevitable, their thirst drives them to drink the salty seawater. They are dead in two days. Why do you think drinking seawater killed the sailor
Rating:Essay Length: 689 Words / 3 PagesSubmitted: January 22, 2010 -
Potato and Osmosis Investigation
Potato and Osmosis Investigation Planning Aim: To investigate the effect of varying concentration of a certain sugar solution on the amount of osmotic activity between the solution and a potato chip of a given size. Hypothesis: Osmosis is defined as the net movement of water or any other solutionЎ|s molecules from a region in which they are highly concentrated to a region in which they are less concentrated. This movement must take place across a
Rating:Essay Length: 2,889 Words / 12 PagesSubmitted: January 23, 2010 -
Osmosis in Potato Course Work
What affect does concentration of solution have on potato tissue? In my preliminary investigation, I will be controlling the following variables: • length of potato cylinder; • amount of solution / water; • type of potato; • size of potato; • temperature of water; • same ruler / person. Changing the concentration of solution: Using three glass test tubes, I will set up the following configuration: • Test tube 1 - Distilled water; • Test
Rating:Essay Length: 332 Words / 2 PagesSubmitted: March 5, 2010 -
Osmosis in Potato Chips
The biological importance of water and its role in living organisms What is water? Water (from the Old English word water) is a colourless, tasteless, and odourless substance that is essential to all known forms of life and is known also as the most universal solvent. Water has a very simple atomic structure, the structure consist of two hydrogen atoms bonded to an oxygen atom, which can also be related to as hydrogen oxide.
Rating:Essay Length: 573 Words / 3 PagesSubmitted: March 21, 2010 -
Osmosis with Potato Chips
My Investigation on osmosis Osmosis is a special kind of diffusion. While diffusion can describe the movement of any kind of molecule, osmosis is only about the movement of water molecules. To show this diffusion I will be using potato discs, of the same size and mass, in different concentrations of sugar solution to find out whether the mass of the discs increases or decreases depending on the concentration. I predict that when the sugar
Rating:Essay Length: 633 Words / 3 PagesSubmitted: May 12, 2010 -
Determination of the Water Potential of Potato Tuber Cells
DETERMINATION OF THE WATER POTENTIAL OF POTATO TUBER CELLS. Method. Five sucrose solutions with varying molarity and one control containing distilled water were prepared and poured into test tubes. The potato discs were dried, weighed and added to the test tubes. The discs were then weighed again after a period of 24 hours. The percentage change in mass was then calculated. Apparatus. Specimen tubes with stoppers x6 1cm3 diameter cork borer razor blade filter papers
Rating:Essay Length: 1,177 Words / 5 PagesSubmitted: March 22, 2009 -
Osmosis Start
Investigate osmosis between potato tissue and sugar solutions. Aim: To investigate the effect of varying concentration of a certain sugar solution on the amount of osmotic activity between the solution and a potato core of a given size 10mm Hypothesis: Osmosis is defined as the net movement of water or any other solutions molecules from a region in which they are highly concentrated to a region in which they are less concentrated. This movement must
Rating:Essay Length: 420 Words / 2 PagesSubmitted: November 9, 2009 -
Osmosis
Osmosis Osmosis is just a special case of diffusion - where water diffuses through a membrane which has different concentrations on either side. Permeable means "allows anything to pass through". Membranes in cells allow small molecules (water) to pass through, but prevent bigger ones from passing. This is called "selectively permeable". Take a look at the following animation; If a selectively permeable membrane separates the two solutions, water moves through it in both directions at
Rating:Essay Length: 330 Words / 2 PagesSubmitted: November 9, 2009 -
Osmosis Investigation
Osmosis investigation Aim: To investigate how sugar concentration affects the mass or size of a potato and find out the sugar solution. Introduction: Osmosis is the movement of water molecules across a partially permeable membrane form a region of high water concentration to a region of low water concentration until the concentration on both sides is equal. This means that osmosis is like diffusion involving water molecules. Osmosis occurs across a partially permeable membrane, with
Rating:Essay Length: 922 Words / 4 PagesSubmitted: November 9, 2009 -
Osmosis
Osmosis is the movement of a substance from a high concentration to a low concentration. Diagram: The Aim: The aim of the experiment was to find the molar concentration of a potato taken from an average of our results. Method 1. Get the equipment on the equipment list. 2. Pick up the cutting tile and potato. 3. Cut the potato using the corer 4. Measure the core’s diameter and length. 5. Remove skin from potato
Rating:Essay Length: 691 Words / 3 PagesSubmitted: November 12, 2009 -
Osmosis
Osmosis Aim: To determine the concentration of cell sap in a potato cell. Osmosis is the movement of water through a semi-permeable membrane. It starts from a weak solution and becomes a more stronger solution until the concentrations on both sides are equal. To investigate the range of solutions needed to find the point at which the surrounding solution is the same as the cell sap in the vacuole. 0 molar - No salt 0.2
Rating:Essay Length: 599 Words / 3 PagesSubmitted: November 13, 2009 -
Osmosis
Practical Report Experiment 4 & 5 Diffusion and Osmosis Experiment: 5 Osmosis- The movement of water Aim: To observe the effects of the movement of water into and out of cells. Hypothesis: I think the potato in the salt water will become soft and the potato in the distilled water will stay firm. Method: 1. The potato was peeled and cut in to two 2cm cubes. 2. One potato was placed in a beaker of
Rating:Essay Length: 299 Words / 2 PagesSubmitted: November 15, 2009 -
Osmosis
The following is a short sample from this piece of coursework: ... els of sucrose solution to distilled water (see molarity table above) and I placed each of the mixtures into the correct beakers. 5. Then I weighed all the potato chips on an electronic balance (see results) and recorded the results. 6. I placed 5 pieces of potato into each beaker and left them for approx 36 hrs. 7. After this time I drained
Rating:Essay Length: 483 Words / 2 PagesSubmitted: November 23, 2009 -
Osmosis
Osmosis Investigation Introduction & Aims At present I am investigating Osmosis, and I have devised a experiment to investigate the rate of it. I have been provided with potatoes, and all the common laboratory equipment. I will look at 2 variables, one discontinuous, one continuous. For my discontinuous veritable I have chosen TYPE OF POTATO. I will have 3 different types of potato, chosen randomly, and numbered A, B & C. For my continuous veritable
Rating:Essay Length: 807 Words / 4 PagesSubmitted: November 24, 2009 -
The Irish Potato Famine
THE IRISH POTATO FAMINE Pre-Famine History The potato was introduced to Europe sometime in the 16th century. There are many theories on how it arrived, but the one with the most credibility is from a case study done by Theresa Purcell. She explains how the white potato, also known as the Irish potato, originated in the Andean Mountains and was brought to Europe by the Spaniards. The potato was originally classified in the same family
Rating:Essay Length: 377 Words / 2 PagesSubmitted: November 24, 2009 -
The Effect of Ph on the Rate of Osmosis Using a Glucose Solution
The Effect of pH on the Rate of Osmosis Using a Glucose Solution Melissa Werderitch Biology 157 11/6/06 Introduction In a journal article written by Florian Lang, osmosis is essentially explained as the flow of water from one area to another that are separated by a selectively permeable membrane to equalize concentrations of particles in the two locations (Lang, 1997). Osmosis is able to maintain osmotic pressure and regulate a cell’s volume. In a hypotonic
Rating:Essay Length: 1,323 Words / 6 PagesSubmitted: November 26, 2009 -
Osmosis in a Patato Chip
OSMOSIS IN A POTATO CHIP Aim: To investigate the effect of varying concentration of a certain sugar solution on the amount of osmotic activity between the solution and a potato chip of a given size. _____________________________________________________________________ Aim: To investigate the effect of varying concentration of a certain sugar solution on the amount of osmotic activity between the solution and a potato chip of a given size. Osmosis is defined as the net movement of water
Rating:Essay Length: 2,051 Words / 9 PagesSubmitted: November 29, 2009 -
The Effects of Concentration on Osmosis
Introduction: This experiment was used to examine the hypothesis that: Osmosis is dependent on the concentrations of the substances involved. Diffusion is the passage of solute molecules from an area of high concentration to an area of low concentration (Campbell & Reece, 2005). An example is ammonia diffusing throughout a room. A solute is one of two components in a chemical solution. The solute is the substance dissolved in the solution. The solvent, the other
Rating:Essay Length: 562 Words / 3 PagesSubmitted: December 1, 2009 -
Osmosis
AIM: to test the theory of osmosis we will put several equal potato slices in different concentration of sucrose solution and observe the changes in the weight of the potato EQUIPMENT: potato, potato chips, sucrose solution 0-10, 5 beakers and scales to weight the potatoes PREDICITON: the potatoes will weight more in different solutions after 10 minutes in the sucrose. THEORY: osmosis is the name to describe the diffusion of water through a partly permeable
Rating:Essay Length: 574 Words / 3 PagesSubmitted: December 3, 2009 -
Osmosis - Evaluation + Conclusion
Conclusion and Evaluation Conclusion In our test we put six different sliced up potatoes chips in solutions. The solution was different concentration of salt and water, one was 5% sugar, one 10%, one 15%, one 20% and one 30% salt concentration. We measured the mass of the potatoes chip before and after we put it into the solution. To keep the experiment fair we only changed one variable which was the salt concentration. The results
Rating:Essay Length: 538 Words / 3 PagesSubmitted: December 4, 2009 -
Biology Osmosis
Investigation into finding out the Effect of the effect of osmosis In potato cells Introduction I am doing an experiment to find out the effect that osmosis has on Water solution and a Sugar solution. Osmosis is a process which water moves from an area of low concentration to an area of high concentration. I am going to record my results to see if osmosis occurs in water solution of sugar solution. Apparatus In this
Rating:Essay Length: 480 Words / 2 PagesSubmitted: December 6, 2009 -
Osmosis
The experiment was very successful in my opinion. I obtained a large quantity of very accurate results from which I was able to create informative graphs. I think I took easily enough results for the amount of concentrations that I was using, and the time that I used for the experiment to last was enough to allow sufficient osmosis to occur. However if I was to repeat the experiment I might well increase the time
Rating:Essay Length: 407 Words / 2 PagesSubmitted: December 11, 2009 -
Mashed Potatoes and Gravy
Mashed Potatoes and Gravy Probably the most influential thinker at the time, Socrates in the fifth century turned things upside down in Greece. He was the “Big Daddy” of philosophy, with his radical teachings and refusal to take anything at face value. Accepting nothing less than the truth, seeking general knowledge of life, Socrates questioned everyone and everything. His work and teachings burst the political bubble of Athens in the fifth century and it ultimately
Rating:Essay Length: 1,654 Words / 7 PagesSubmitted: December 11, 2009 -
Osmosis
Aim: The aim of this investigation is to compare & evaluate the effects of osmosis in potato chips. We aim to find out the different outcomes that can (and will) take place when the potato chips are placed in different amounts of concentrated solutions (Sucrose Concentration). Scientific Knowledge: * Water is absorbed by the potato chip due to the Potato Chip being permeable. * Potatoes will increase in size. * Potatoes will become more flexible.
Rating:Essay Length: 502 Words / 3 PagesSubmitted: December 22, 2009