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Multiple Choice
Which of the following cellular transport processes are classified into the two main categories of endocytosis and exocytosis?
A
Osmosis
B
Bulk transport
C
Simple diffusion
D
Facilitated diffusion
Verified step by step guidance
1
Understand the two main categories of cellular transport: Endocytosis and Exocytosis. These processes are involved in bulk transport, which moves large molecules or particles across the cell membrane.
Recognize that endocytosis refers to the process where the cell engulfs substances into vesicles to bring them inside the cell. Examples include phagocytosis (cell eating) and pinocytosis (cell drinking).
Understand that exocytosis is the process where vesicles fuse with the cell membrane to release substances outside the cell. This is commonly used for secretion of proteins or waste products.
Differentiate bulk transport from other transport mechanisms like osmosis, simple diffusion, and facilitated diffusion. These processes involve the movement of smaller molecules and do not require vesicles or energy in the same way bulk transport does.
Conclude that bulk transport is the correct classification for processes involving endocytosis and exocytosis, as these mechanisms are specifically designed for moving large molecules or particles across the cell membrane.