An experiment is designed to compare the effects of glucose and sucrose on the osmotic potential...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
An experiment is designed to compare the effects of glucose and sucrose on the osmotic potential of a model cell. Two dialysis bags are used, one filled with a solution of 5% by mass glucose and the other with a 5% by mass sucrose solution. A given membrane is permeable to water but impermeable to glucose and sucrose. Each membrane bag is then placed in a beaker of distilled water for two hours. The change in mass of the glucose bag is recorded below: Solution (5% by mass) Initial Mass of Solution and Membrane Bag (g) Final Mass of Solution and Membrane Bag (g) Glucose in Distilled Water 10.0 13.2 Sucrose in Distilled Water | 10.0 a. Describe the process of diffusion through the dialysis bags. (Note: Sucrose does not travel.) b. If you were to design a different experiment testing rates of diffusion, identify experimental procedures. c. Analyze that data in the chart and describe the results. Predict the change in mass of the sucrose membrane bag, compared to that of the glucose membrane bag. The molar mass of glucose is 180 g/mole, and the molar mass of sucrose is 342 g/mole. (Note: You do not need to calculate final mass.) d. Based on the results, explain the increase in mass of the glucose membrane bag in terms of the movement of particles through the membrane. Provide reasoning that describes how this relates to osmotic pressure. An experiment is designed to compare the effects of glucose and sucrose on the osmotic potential of a model cell. Two dialysis bags are used, one filled with a solution of 5% by mass glucose and the other with a 5% by mass sucrose solution. A given membrane is permeable to water but impermeable to glucose and sucrose. Each membrane bag is then placed in a beaker of distilled water for two hours. The change in mass of the glucose bag is recorded below: Solution (5% by mass) Initial Mass of Solution and Membrane Bag (g) Final Mass of Solution and Membrane Bag (g) Glucose in Distilled Water 10.0 13.2 Sucrose in Distilled Water | 10.0 a. Describe the process of diffusion through the dialysis bags. (Note: Sucrose does not travel.) b. If you were to design a different experiment testing rates of diffusion, identify experimental procedures. c. Analyze that data in the chart and describe the results. Predict the change in mass of the sucrose membrane bag, compared to that of the glucose membrane bag. The molar mass of glucose is 180 g/mole, and the molar mass of sucrose is 342 g/mole. (Note: You do not need to calculate final mass.) d. Based on the results, explain the increase in mass of the glucose membrane bag in terms of the movement of particles through the membrane. Provide reasoning that describes how this relates to osmotic pressure.
Expert Answer:
Answer rating: 100% (QA)
Ans a Osmosis Osmosis is the process of movement of water or solvents from the region of higher conc... View the full answer
Related Book For
Introduction to Probability and Statistics
ISBN: 978-1133103752
14th edition
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
Posted Date:
Students also viewed these accounting questions
-
An experiment was conducted to compare the effects of four different chemicals, A, B, C, and D, in producing water resistance in textiles. A strip of material, randomly selected from a bolt, was cut...
-
An experiment was conducted to compare the effects of three toxic chemicals, A, B, and C, on the skin of rats. One-inch squares of skin were treated with the chemicals and then scored from 0 to 10...
-
An experiment was conducted to compare the effects of four different drugs (A, B, C, and D) in delaying atrophy of denervated muscles. A certain leg muscle in each of 48 rats was deprived of its...
-
Gombas Company decided to analyze certain costs for October of the current year. There was no beginning inventory. Units started into production equaled 14000, units transferred out equal 12000, and...
-
Dell Inc. in an attempt to gain penetration in the Chinese market decided to augment its direct sales channel model with indirect retail store channels. Two desk tops and two laptops both low priced...
-
Draw a diagram of the SML. Label the axes and the intercept. a. Assume the risk-free rate shifts upward. Draw the new SML. b. Assume that the risk-free rate remains the same as before the change in...
-
The finalists can be viewed at http://www .sciencemag.org/projects/data-stories/finalists. Pick a video that interests you, watch it, and answer the following questions: (a) Give a link to the chosen...
-
Solar Energy Corp. has $4 million in earnings with four million shares outstanding. Investment bankers think the stock can justify a P/E ratio of 21. Assume the underwriting spread is 5 percent. What...
-
Prepare the schedule of cost of goods manufactured for Barton Company using the following information for the year ended December 31. Direct materials used Direct labor Factory overhead Work in...
-
Prove the following analogs to Stein's Lemma, assuming appropriate conditions on the function g. (a) If X ~ gamma(α, β), then E(g(X)(X-aβ)= βE...
-
Illustrate and explain to the intern the role and responsibilities of these two departments,(financial accounting and financial management) and their importance to the organisation. Contrast and...
-
One of the methods that Rite Aid used to reduce its cost of goods sold was to pass journal entries that decreased cost of goods sold and decreased accounts payable by a corresponding amount....
-
Enron Online was the biggest e-commerce entity in the world, selling over 800 different products, such as: (a) Gas and electricity. (b) Weather derivatives. (c) Metal futures. (d) All of the above.
-
One of the signals of the understatement of expenses is the increase in expenses as a percentage of sales. True/False
-
Livent arranged for outside associates to purchase approximately $381,000 of tickets on personal __________ and make future ticket purchases using personal __________.
-
AHERFs failure to increase its reserve for bad debts caused it to understate its expenses and overstate its income. True/False
-
An investor is bearish on a stock, what are the two possible naked option strategies? Alternatively, the investor can construct a bear spread. What are the main differences between the bear spread...
-
What are the two components of a company's income tax provision? What does each component represent about a company's income tax provision?
-
One method of arriving at economic forecasts is to use a consensus approach. A forecast is obtained from each of a large number of analysts, and the average of these individual forecasts is the...
-
Refer to Exercise 9.1. Suppose that the observed value of the test statistic was z = 2.16. For the rejection regions constructed in parts a and b of Exercise 9.1, draw the appropriate conclusion for...
-
Find a (1 - ) 100% confidence interval for a population mean for these values: a. = .01, n = 38, = 34, s2 = 12 b. = .10, n = 65, = 1049, s2 = 51 c. = .05, n = 89, = 66.3, s2 = 2.48
-
The pendulum on a grandfather clock has a period of 2.00 s. If the clock is not wound, the pendulums amplitude begins to decay at a rate of 0.53% each pendulum period. a. What is the time constant of...
-
The motion of a nightingales wingtips can be modeled as simple harmonic motion. In one study, the tips of a birds wings were found to move up and down with an amplitude of 8.8 cm and a period of 0.82...
-
A block with a mass of 0.28 kg is attached to a horizontal spring. The block is pulled back from its equilibrium position until the spring exerts a force of 1.0 N on the block. When the block is...
Study smarter with the SolutionInn App