predict the likely effect on the ability of substance L to enter the cells if substance L is attached to a large protein

Full Question Attached

The substance would be less likely to enter the cell by active transport or might enter more slowly

Explanation:

The information in the question suggests substance L is moving into the cell by active transport. We can tell this because the concentration of substance L inside the cell is 120 mM. However, the substance is still entering the cell from a lower to a high concentration, against its concentration gradient. This requires energy and is therefore active transport.

If there was a large protein attached, the active transport machinery might not be able to move substance L at the same rate. The rate it enters the cell might slow down, or it might stop all together. It might need to enter via another mechanism, such as endocytosis.

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