The osmolarity of the potato core is 04 m, i determined this by finding where on my graph the percentage change in mass was equivalent to 0 this meant that there was no change in mass, the tissue and solution were isotonic, and the molarity of the solution is the same as the osmolarity of the tissue. Determing the osmolarity of a potato essay determining the osmolarity of a potato mishal hasan abstract students in biology find it difficult to understand the concept of tonicity and osmolarity in a real time situation in this investigation, several concentrations of. Below is an essay on potato osmolarity from anti essays, your source for research papers, essays, and term paper examples determining the osmolarity of tissues name of student: alexander al-feghali.
The effect of osmosis on potato cells essay preliminary experiment pages 8 - 14: main experiment introduction in this experiment i am going to investigate the effect of varying concentration of a differing glucose solution on the amount of osmotic activity, between the solution and a potato tuber of a given size. Determining the molarity of a potato cytoplasm an experiment to find the concentration of a potato cell cytoplasm aim: to find the concentration of a potato cell cytoplasm compared to sucrose and salt. In the lab a comparison of osmolarity in a white potato and a macintosh apple was found in order to complete the lab the cut up potatoes and apples were left in sugar solutions overnight to see how much water would go into or out of the cell, due to osmosis there was a total of 10 solutions (5 for. Biology lab report: osmosis done by: seonlim lee (lynn) g10b purpose-to find the isotonic point of the potato-to determine the weight changes after submerging the potato in different concentration of salt water for 20 minutes.
In this exercise you will be calculating the osmolarity of a carrot or a potato, which ever one you might have sitting around the house you will need one potato or one carrot. Abstract students in biology find it difficult to understand the concept of tonicity and osmolarity in a real time situation in this investigation, several concentrations of sucrose were used to determine the osmolarity of a potato. Determining the water potential of potato tuber cells essay - determining the water potential of potato tuber cells i will carry out an investigation that will enable me to determine the water potential of the tested potato tuber cells. Determining the osmolarity of a potato mishal hasan abstract students in biology find it difficult to understand the concept of tonicity and osmolarity in a real time situation. The potato is isotonic with a 02m solution of sucrose because there was only a 482 percent change in volume in the potato which was the smallest change in all of the solutions tested (table 1) if you look at graph 3 you can see that from 04m sucrose solution and above the potato is hypotonic to the solution from the decrease in weight seen.
The effect of sucrose concentration on the relative osmotic concentration in potato tubers abstract this lab was conducted in order to determine the molarity of sucrose concentration where the mass of potato tuber segments does not change, indicating an isosmotic concentration. More essay examples on effect rubric the sucrose solutions of 0 0m to 0 3m increased the weight of the potato tubers, supporting our hypothesis the sucrose solution of 0 4m only slightly increased the weight of the potato tubers, supporting our hypothesis that the osmolarity of the potato tubers was 0 4m. Sample potato osmosis lab report to receive the best grade in potato cells lab report,we recommend the below format which we have clearly explained it for you in a simple mannerkindly consult our experts for more detailed report per your instructions and academic level.
Estimating osmolarity of plant cells essay sample in this experiment you will be estimating the osmolarity of potato cells by finding their change in weight in solutions of known molarity the object is to find the molarity where the mass does not change. Calculate the osmolarity from observed values the osmolarity of a solution may be given as the sum of (yi)(ni)(ci), where yi is the osmotic coefficient of solute i, n is the number of particles that solute i dissociates into and ci is the molarity of solute i. Estimating osmolarity by change in weight abstract water flows in and out of cells in an attempt to attain a state of equilibrium the concentration of solutes to solvent in the cells environment is the cause of the water flow.
A solution of 1 mol/l nacl has an osmolarity of 2 osmol/l a solution of 1 mol/l cacl_2 has an osmolarity of 3 osmol/l (1 mol ca^(2+) and 2 mol cl^-) example 1 calculate the osmolarity of blood. Potato osmolarityagain hi, after doing a diffusion/osmosis lab, i am being asked to determine the osmolarity of a the potato cores we recorded the cores' initial mass, placed them in sucrose solutions of varying molarities, and then weighed them one day later. Best answer: this is a standard question for ap bio this looks to see if you get why the potato cores are gaining or losing mass and if you can use a graph of known results to figure out some unknown (a common task in science.
Published: mon, 5 dec 2016 the purpose of this investigation is to examine the effect of varying the concentration of a sugar solution (sucrose) on the amount of osmotic activity between a potato piece and the solution. How can you determine the osmolarity of a potato when there is a weight change in the potato tuber from the sucrose solution the ones with a postive difference are hypotonic and the ones with a negative difference are hypertonic. The sweet potato is more nutrient dense than a normal potato, in that it has more sugar, fiber and vitamins than a normal potato(3) the hypothesis is the sweet potato will have a higher osmolarity than the ordinary potato because of its more nutrient dense nature.
The lower salt concentrations result in an increase in length of the potato strip, meaning water has entered the potato strips by osmosis this means there is a higher water potential inside the. Effect of sucrose molarity on potato tuber weight essay using sucrose solutions to determine osmolarity of potato tubers based on weight by thomas pelikan biology 200a section 004 kimberly schmidt october 2, 2012 abstract: in this experiment we were trying to determine the osmolarity of potato tubers by weighing them before and after incubating. Osmosis: potato and sucrose solution essay investigation of factors affect osmosis in potatoes aim the aim of the following experiment was to investigate the effect of varying the concentration of sucrose solution on osmosis in a potato. How to obtain data for the osmolarity required practical 2 of the ibdp biology syllabus.