Sucrose moves into a cell against its concentration gradient at the same time that protons move into the cell along their concentration gradient. This is an example of ____.

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Quizplus · Accepted Answer

This is an example of symport, where two substances are simultaneously transported across a membrane in the same direction by the same protein transporter. In this case, sucrose and protons are both moving into the cell, with sucrose moving against its concentration gradient and protons moving down theirs, indicating the use of a symporter.

Sucrose Moves into a Cell Against Its Concentration Gradient at the Same