The Effect of Sucrose Concentration on the Mass of Potato Tissue
Prediction: I predict that a high sugar solution will cause the mass of the potato to decrease. This will be due to osmosis. Osmosis is the diffusion of water from a region of high concentration to a region of low concentration across a semi-permeable membrane, such as the one of the potato. If the water concentration inside the potato is higher than the water concentration in the solution then the cell will lose water through osmosis, which will cause it to shrivel. When the plant cell is in said state it is plasmalised. However, if the plant cell is in a pure water solution, the plant will take in a large amount of water and has gains enough water, when a plant is in this state- it is said to be turgid. When this happens, the plant is said to be turgid. So, I predict that when the potato is in a strong sugar solution it's mass will decrease.
Equipment;
Five test tubes - To hold the potato and each one of the five sugar solutions individually;
Test tube rack;
Knife and equipment to cut potato into 5 pieces of equal mass;
Measuring cylinder for measuring amount of water and finding the correct amount;
Scales for weighing sugar;
Thermometer to ensure the temperature of each solution is identical to the others;
Spatula for stirring sugar solutions;
Sugar and distilled water.
Diagram
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Method: Using a scalpel, cut five potato pieces. They should be of an almost equal size and mass. To ensure this, weigh the pieces.
When one first thinks of mythology the first things that first come to mind are probably stories of Greek gods and goddesses, and the humans that prayed to them. We often forget that mythology does not end or begin with the Greeks. Authors have been using mythology for many would say centuries as a source for symbols, characters, situations, or images that conjures up universal feedback. In the case of “The Virgin Suicides” by Jeffrey Eugenides one of the archetypes that we see play out throughout the novel is the one of The Virgin Mary. The Virgin Mary in “The Virgin Suicides” represents a sense of foreshadowing at the beginning and towards the end of the book, provide an allegory between the Libson girls and The Virgin Mary, and help deeper define the Libson girls.
Test tube A will have a piece of potato which is this size. Test tube
When doing this experiment I was able to see the effect of different concentrations on the rate of osmosis, each was done by measuring the initial mass and length of the potato cylinder and after osmosis, the results were conducted to show that as the sucrose concentration increases the rate of osmosis also increases as I said in my hypothesis thusly making a direct decrease in mass.
If we put the potatoes in different concentrations of seawater (0%, .4%, .8%, 1.2%, 1.6%, and 2%) then the potato put in the highest concentration of seawater (2%) will begin to discolor and fall apart while the potato put in the lowest (0%) concentration of seawater won’t discolor and fall apart because the seawater with the 2% concentration will diffuse into the potato causing it to break down and discolor faster than the potato in the lower concentration of seawater.
The materials needed are three small beakers (150 or 250 ml), a potato, a knife to cut the potato into pieces, a ruler to measure the potato, something to weigh the potato pieces, a timer, a calculator, and three solutions: distilled water, 10% sucrose, and 50% sucrose. The point of this experiment is to calculate the percent change in the mass before and after soaking the potato in the three different solutions. Create your own hypothesis before beginning the experiment. My hypothesis is that the potato soaked in water will have a higher mass after soaking, and that the potato soaked in the 10% sucrose and 50% sucrose will remain the same. Make sure to keep up with your measurements since they are needed to determine the mass percent change. The best way to accomplish this is to use the table provided at the end of this sheet to record your results. The first thing you need to cut the potato into three pieces of about two cubic centimeters (cm^3) in length. The second step you need to take is weighing each potato piece and writing down its mass. Next, label the three beakers with the three different solutions used. Then, you need to pour distilled water over one piece of potato, 10% sucrose on another, 50% sucrose on the last piece of potato; each solution needs to be poured on each potato piece until they are completely submerged. After they are submerged: set your timer for an
I intend to use potatoes for my investigation because these are sufficiently large, to enable all cores to be taken from the same potato, which will assist in ensuring a fair test.
The second of the sources was Lucy Tonic’s article, Analysis of “The Virgin Suicides”. Tonic brings to the forefront a metaphoric viewpoint. To begin with, she has the suspicion that Cecilia, the first of the Lisbon girls to commit suicide was being sexually abused throughout the film by her father. For instance, Tonic claims, “There was some underlying event taking place that was disguised. Unlike Cecilia’s four sisters, who shared two rooms between them, Cecilia for some reason had her own room.” Tonic reveals that it is odd the youngest of the four girls gets her own room. Additionally, ...
Investigation of the Concentration and the Effect of Sucrose on Osmosis in Apple and Potato Tissues
I blended on high to make the potatoes more liquid-like. I grabbed the cheesecloth and placed on the top of the blender. I poured the potato extract on the container and labeled it. I found out that I have to make 1% sugar solution so I grabbed the sugar and measured into 5 grams on the scale. I added 5 grams of sugar on 250 ml graduated cylinder and poured the water into the cylinder. I mixed the sugar with water and poured it into the saucepan. I refilled the water into the graduated cylinder and poured into the saucepan. I turned on the heat of the stove and saw the sugar dissolved. I poured into a container and labeled 1% sugar solution. I repeated the same thing with 1% salt solution by using 1 gram of salt and filled the water into graduated cylinder by 100 ml. I answered question three. In the first experiment, I grabbed four transfer pipets and used it to put solutions into the test tubes by 3ml. I labeled it and placed into the plastic cups so it can stand upright. I grabbed each test tube and poured 2 ml of catalase solution into it. I also tapped and swirled to measure the bubbles by using the ruler. I wrote the numbers into the lab report. In the second experiment, I labeled the room
potato cells. In order to find the best way to do this experiment I am
* Make sure each piece of potato is exactly the same size as the next.
4. Put each group of potato discs in one of the 6 test tubes and watch
When you place a potato chip in a salt or sugar solution, then if the
· Collect 3 cylinders, and then cut them into 6 pieces of 3 cm with a
Jeffrey Eugenides has the narrator introduce the story by saying that all five daughters will die. The narrator then chronicles the first suicide attempt of Cecilia. Cecilia was thirteen years old at the time. Thirteen is a fascinating number. It is thought to be an unlucky number, stemming from the betrayal of Jesus at the Last Supper. (Lachenmeyer) Immediately, the reader can realize the religious superstition that accompanies the number. Readers will understand that there is clearly an unlucky aura surrounding the Lisbon home, and the origins are religious in nature. Furthermore, the story occurs over a time period of thirteen months, only furthering this notion of a supernatural omen of doom upon the Lisbon family. However, this is contrasted with the insertion of the number seven, representing the number of members of the Lisbon family. Seven is thought to be lucky, and should act as a countermeasure against thirteen, which adds a layer of mystery to the