Question Detail
Question
Which of the following functions does active transport perform in a cell? a. Packaging proteins for export from the cell b. Distributing enzymes throughout the cytoplasm c. Moving substances against a concentration gradient d. equalizing the concentration of water inside & outside the cell
Correct Answer
Option C is the correct answer.
Detailed Explanation
The defining characteristic of active transport is its ability to move substances against their concentration gradient (from an area of low concentration to high concentration). This requires energy (ATP) and specific carrier proteins. Option A is packaging (Golgi), B is not a specific process, and D describes osmosis.
Hint
It's like pushing a boulder uphill – it requires energy to go against the natural flow.