Biology, 14.01.2021 22:40 jhonnysoriano9053

The sodium potassium pump is a form of active transport that moves three sodium ions to the outside of the cell for every two potassium ions that is moved into the cell. Which of these best explains why energy is needed for active transport?

Ions are negatively charged

Ions are attached to large proteins

Ions are trapped inside the plasma membrane

Ions are moved against the concentration gradient

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