If the Concentration of a Solute Is the Same Both

question 5

Multiple Choice

If the concentration of a solute is the same both inside and outside the cell,what might you expect with regard to its transport by a membrane protein?

• A)Since there is no concentration gradient,no transport either in or out of the cell is possible.
• B)Movement of the solute across the membrane could occur and cause accumulation on one side of the membrane by an active transport protein.
• C)The transport protein has been saturated.
• D)The solute must be phosphorylated with a phosphate group from ATP before further transport can occur.

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