All Forms Of Life Require Mg2 Two Of The Proteins Used By Bacteria To Import Mg2 From The Environment Are Cora And Mg 1 (29.2 KiB) Viewed 52 times
All Forms Of Life Require Mg2 Two Of The Proteins Used By Bacteria To Import Mg2 From The Environment Are Cora And Mg 2 (29.51 KiB) Viewed 52 times
All forms of life require Mg2+. Two of the proteins used by bacteria to import Mg2+ from the environment are CorA and MgtA. You encounter a cell whose internal Mg2+ concentration is 0.25 mM, while the environmental Mg²+ concentration is 0.60 mM. The environmental temperature is 37 C, and for moving an ion into the cell is -0.04 V. What is the free energy change associated with moving one mole of Mg2+ into the cell? Give your answer in terms of J/mol. Partial credit will not be possible.
All forms of life require Mg2+. Two of the proteins used by bacteria to import Mg2+ from the environment are CorA and MgtA. You encounter a cell whose internal Mg2+ concentration is 0.25 mM, while the environmental Mg2+ concentration is 0.60 mM. The environmental temperature is 37 C, and for moving an ion into the cell is -0.04 V. Suppose you were to depolarize the membrane (that s, you make it so that now is equal to 0.00V). Would this increase, decrease, or not affect how much Mg2+ was brought into the cell? Briefly justify your answer. Consider only the thermodynamics involved, not the specific proteins.
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