Multiple Choice
Which of the following statements about receptor-mediated endocytosis is true?
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6. The Membrane
Endocytosis and Exocytosis
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In endocytosis, in which direction do substances move relative to the cell membrane?
A
Along the surface of the cell membrane
B
Into the cell
C
Across the cell membrane without entering the cell
D
Out of the cell
Verified step by step guidance1
Understand the concept of endocytosis: Endocytosis is a cellular process in which substances are brought into the cell by engulfing them with the cell membrane.
Identify the direction of movement: In endocytosis, substances move from the outside of the cell to the inside, crossing the cell membrane.
Differentiate from other processes: Unlike exocytosis, where substances are expelled from the cell, endocytosis involves the intake of materials.
Consider the types of endocytosis: There are different forms, such as phagocytosis (ingestion of large particles) and pinocytosis (ingestion of liquids).
Conclude the direction: Therefore, in endocytosis, substances move into the cell, crossing the cell membrane.
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