Question Detail
Question
Which of these transport mechanism in a cell is active? A. Diffusion B. Osmosis C. Bulk transport D. All of the above
Correct Answer
Option C is the correct answer.
Detailed Explanation
Active transport requires the cell to expend energy (ATP) to move substances, often against their concentration gradient. Bulk transport, which includes endocytosis and exocytosis, requires energy. Diffusion and osmosis are passive processes that do not require cellular energy.
Hint
Which process involves moving large amounts of material, requiring energy input?