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One Substance Has No Membrane Transporters to Move It but Can

question 16

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One substance has no membrane transporters to move it but can diffuse freely through open leak channels if there is a concentration gradient.Initially,this substance's concentrations in the filtrate and extracellular fluid are equal.Later,however,the active transport of Na+ and other solutes creates a gradient by removing water from the lumen of the tubule where it is located.What substance is this?


Definitions:

Unassertive

Characterized by a lack of confidence or forcefulness in expressing one's views or desires.

Accommodation

The process or act of adjusting or adapting one's environment to meet individual needs or preferences.

Cooperative

A business or organization owned and operated for the mutual benefit of its members, who share in its profits or benefits.

Unassertive

Characterized by a lack of confidence and a hesitancy to express one's own needs, desires, or opinions.

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