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Consider a spherical cell of radius 8 micrometers. The cell is suddenly placed in a solution of pure water. For simplicity, assume that the cell is a 0.15 M NaCl solution and the fluid density inside the cell is 1.005 g/ml. The density of pure water is 1g/ml.
a) Explain why the cell swells.
b) What is the concentration difference of water between inside and outside the cell.
c) The cell has extra membrane that enables the cell to swell. If the cell has 1 x 10^5 aquaporin channels and the water flow rate in each channel is 1 x 10^9 molecules/s, how long before the surface areas to 150% of the initial value and the cell bursts? Assume that the fluid density in the cell is 1g/cm^3 and the rate at which water molecules penter the cell is constant.
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To determine whether a public employee receives First Amendment protection from speech (and therefore cannot be fired for it), the Supreme Court has stated that all of the following are important except:
An order is placed with a plant to deliver 2500 kg of 9.5% solution of cellulose nitrate. The only product on hand is 5.5% solution. How much dry cellulose nitrate must be added to the solution to meet the requirement?
Which of the following is an example of combining two incomplete proteins to achieve protein complementation?
What similarities and differences can you identify between the nursing process and the research process?
Provide a description of the historical development that you believe contributes most to the abuse of a particular substance today.
The winch on the back of the Jeep A is turned on and pulls in the tow rope at 2 m/s measured relative to the Jeep. If both the 1 .25-Mg car B and the 2.5-Mg Jeep A are free to roll, determine their velocities at the instant they meet. If the rope ..
There are some theorists who do not believe that the unconscious mind exists, therefore making it even more difficult to support.
What is the relationship between justice and worship? Please provide extensive detail information inclusive of references.
Which of the following statements best defines expressive sexuality?
Client-to-client communication has dramatically changed. After completing reading/research, you are asked to identify one positive and one negative outcome related to the changes addressed above. Include two examples from real life in your discuss..
Specifically, describe and discuss W.I. Thomas' statement: if men define a situation as real, it is real in its consequences. What is he saying and what is its significance in the study of human social behavior?
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