What are the two types of bulk transport?

What are the two types of bulk transport?

• A. Endocytosis and Exocytosis
• B. Phagocytosis and Pinocytosis
• C. Diffusion and Osmosis
• D. Passive and Active transport

Answer: (A)

Bulk transport moves large particles or large quantities across the cell membrane by using vesicles. The two main forms are endocytosis, where the membrane folds inward to bring material into the cell inside a vesicle, and exocytosis, where vesicles fuse with the membrane to release contents outside the cell. Endocytosis includes subtypes like phagocytosis (cell eating) and pinocytosis (cell drinking), but these are specific ways the cell can perform endocytosis rather than separate bulk-transport categories. Diffusion and osmosis involve small molecules moving along concentration gradients without vesicles and aren’t bulk transport. Bulk transport uses cellular energy to form and move vesicles, while diffusion and osmosis are passive processes.

Bulk transport moves large particles or large quantities across the cell membrane by using vesicles. The two main forms are endocytosis, where the membrane folds inward to bring material into the cell inside a vesicle, and exocytosis, where vesicles fuse with the membrane to release contents outside the cell. Endocytosis includes subtypes like phagocytosis (cell eating) and pinocytosis (cell drinking), but these are specific ways the cell can perform endocytosis rather than separate bulk-transport categories. Diffusion and osmosis involve small molecules moving along concentration gradients without vesicles and aren’t bulk transport. Bulk transport uses cellular energy to form and move vesicles, while diffusion and osmosis are passive processes.