Multiple Choice
Which type of nutrient uptake involves the engulfment of small dissolved molecules into vesicles?
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6. The Membrane
Endocytosis and Exocytosis
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Which of the following processes is used to export large molecules out of the cell?
A
Phagocytosis
B
Endocytosis
C
Pinocytosis
D
Exocytosis
Verified step by step guidance1
Understand the context: The problem is asking about a cellular process that exports large molecules out of the cell.
Review the definitions: Exocytosis is the process by which cells move materials from within the cell into the extracellular space. This is the opposite of endocytosis.
Differentiate the processes: Phagocytosis and pinocytosis are types of endocytosis, which involve the intake of materials into the cell, not export.
Focus on exocytosis: In exocytosis, vesicles containing large molecules fuse with the plasma membrane, releasing their contents outside the cell.
Conclude the reasoning: Since exocytosis is the process that exports large molecules out of the cell, it is the correct answer to the problem.
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