Which process is used by cells to remove wastes from the cell?

• A. Exocytosis
• B. Osmosis
• C. Endocytosis
• D. Facilitated diffusion

Answer: (A)

Verified step by step guidance

1. Step 1: Understand the concept of waste removal in cells. Cells need to expel waste products and other substances that are not needed to maintain homeostasis and proper functioning.
2. Step 2: Review the process of exocytosis. Exocytosis is a cellular process where vesicles containing waste or other substances fuse with the plasma membrane to release their contents outside the cell. This is an active transport mechanism requiring energy.
3. Step 3: Compare exocytosis with other processes listed in the options. Osmosis refers to the passive movement of water across a membrane, endocytosis involves the intake of substances into the cell, and facilitated diffusion is the passive transport of molecules across a membrane with the help of transport proteins.
4. Step 4: Identify the process that specifically removes waste from the cell. Exocytosis is the correct process for expelling waste, as it directly involves the transport of substances out of the cell.
5. Step 5: Conclude that exocytosis is the correct answer based on its role in waste removal, while the other processes serve different functions in cellular transport.