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Young Dr. Frank wants to make an artificial cell using parts taken from living cells. He almost has it working, but before he can yell "it's alive!" there are a couple of problems he needs to work out. He wants his cell to be able bring in the sugar sucrose and the amino acid proline as nutrients, and decides to experiment on a simple model cell to decide the best way to get that done with the parts at hand. Young Dr. Frank is to impatient to keep track of numbers, so he has a machine that measures the relative concentration of solutes on different sides of a membrane and either says they are equal or low and high. 2. First, Young Dr. Frank inserts an H+ - sucrose cotransporter in the membrane and measures the solutes shown below, inside and outside his model cell. Nothing happens. equal equal equal Sucrose equal Proline equal Na+ K+ H+ Na+ K+ equal equal equal Sucrose equal Proline equal H+

Young Dr. Frank wants to make an artificial cell using parts taken from living cells. He almost has it working, but before he can yell "it's alive!" there are a couple of problems he needs to work out. He wants his cell to be able bring in the sugar sucrose and the amino acid proline as nutrients, and decides to experiment on a simple model cell to decide the best way to get that done with the parts at hand. Young Dr. Frank is to impatient to keep track of numbers, so he has a machine that measures the relative concentration of solutes on different sides of a membrane and either says they are equal or low and high. 2. First, Young Dr. Frank inserts an H+ - sucrose cotransporter in the membrane and measures the solutes shown below, inside and outside his model cell. Nothing happens. equal equal equal Sucrose equal Proline equal Na+ K+ H+ Na+ K+ equal equal equal Sucrose equal Proline equal H+

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Please help answer parts a-d

Young Dr. Frank wants to make an artificial cell using parts taken from living cells. He almost has it working, but before he can yell "it's alive!" there are a couple of problems he needs to work out. He wants his cell to be able bring in the sugar sucrose and the amino acid proline as nutrients, and decides to experiment on a simple model cell to decide the best way to get that done with the parts at hand. Young Dr. Frank is to impatient to keep track of numbers, so he has a machine that measures the relative concentration of solutes on different sides of a membrane and either says they are equal or low and high. 2. First, Young Dr. Frank inserts an H+ - sucrose cotransporter in the membrane and measures the solutes shown below, inside and outside his model cell. Nothing happens. equal equal equal Sucrose equal Proline equal Na+ K+ H+ Na+ K+ H+ equal equal equal Sucrose equal Proline equal
Transcribed Image Text:Young Dr. Frank wants to make an artificial cell using parts taken from living cells. He almost has it working, but before he can yell "it's alive!" there are a couple of problems he needs to work out. He wants his cell to be able bring in the sugar sucrose and the amino acid proline as nutrients, and decides to experiment on a simple model cell to decide the best way to get that done with the parts at hand. Young Dr. Frank is to impatient to keep track of numbers, so he has a machine that measures the relative concentration of solutes on different sides of a membrane and either says they are equal or low and high. 2. First, Young Dr. Frank inserts an H+ - sucrose cotransporter in the membrane and measures the solutes shown below, inside and outside his model cell. Nothing happens. equal equal equal Sucrose equal Proline equal Na+ K+ H+ Na+ K+ H+ equal equal equal Sucrose equal Proline equal
a. Why did nothing happen? b. Loyal Assistant Egore suggests adding proton pump to the membrane, and the concentrations change! Draw each of the two transport proteins used so far in the membrane of the model cell shown below. Write the new concentrations (as equal, high, or low) of the five solutes after adding the two proteins. O c. Encouraged by their success, Young Dr. Frank and Loyal Assistant Egore tackle the problem of getting proline into the cell. What proteins would they need to add from the Transport Toolbox? Draw them on the membrane of the model cell below and write the new concentrations of the five solutes (assume the proteins from part "b" are still in the membrane). O d. Do you see any problems with transport system you have helped Young Dr. Frank build above? Is there anything else that needs to be added to make the system run properly?
Transcribed Image Text:a. Why did nothing happen? b. Loyal Assistant Egore suggests adding proton pump to the membrane, and the concentrations change! Draw each of the two transport proteins used so far in the membrane of the model cell shown below. Write the new concentrations (as equal, high, or low) of the five solutes after adding the two proteins. O c. Encouraged by their success, Young Dr. Frank and Loyal Assistant Egore tackle the problem of getting proline into the cell. What proteins would they need to add from the Transport Toolbox? Draw them on the membrane of the model cell below and write the new concentrations of the five solutes (assume the proteins from part "b" are still in the membrane). O d. Do you see any problems with transport system you have helped Young Dr. Frank build above? Is there anything else that needs to be added to make the system run properly?
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