Which cellular process describes the expulsion of wastes from a vacuole to the outside of the cell by fusion of a vesicle with the plasma membrane?

• A. Phagocytosis
• B. Endocytosis
• C. Osmosis
• D. Exocytosis

Answer: (D)

Verified step by step guidance

1. Identify the key terms in the question: the process involves expulsion of wastes from a vacuole to the outside of the cell by fusion of a vesicle with the plasma membrane.
2. Recall the definitions of the given options: Phagocytosis is the process of engulfing large particles or cells; Endocytosis is the process of taking substances into the cell by vesicle formation; Osmosis is the passive movement of water across a membrane.
3. Understand that the process described involves moving materials out of the cell, which is the opposite of endocytosis.
4. Recognize that the fusion of a vesicle with the plasma membrane to release contents outside the cell is characteristic of exocytosis.
5. Conclude that the correct cellular process described is exocytosis, which is responsible for expelling wastes or other substances from the cell.