Biology, 21.10.2020 01:01 punkinrichard1oxon2i

If a cell needs to transport a certain ion across its cell membrane, which of the following situations can you conclude that energy must be used? The ion is moving from low to high concentration
The ion is moving from the outside of the cell to the inside
The ion is moving from the inside of the cell to the outside
The ion is moving from high to low concentration

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If a cell needs to transport a certain ion across its cell membrane, which of the following situatio...