Multiple Choice
Which of the following is not an endocytic pathway?
13. Intracellular Protein Transport
Endocytic Pathways
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Which vesicle is responsible for carrying receptors back to the plasma membrane?
A
Early endosomes
B
Late endosomes
C
Recycling endosomes
D
Multivesicular bodies
Verified step by step guidance1
Understand the role of endosomes in the cell: Endosomes are membrane-bound compartments within cells that are involved in sorting and trafficking of proteins and lipids.
Differentiate between the types of endosomes: Early endosomes are involved in sorting endocytosed material, late endosomes are involved in the maturation process leading to lysosomes, and multivesicular bodies are a type of late endosome involved in the degradation pathway.
Focus on recycling endosomes: Recycling endosomes are specialized compartments that return receptors and other membrane components back to the plasma membrane after they have been internalized.
Identify the function of recycling endosomes: They are responsible for the recycling pathway, which is crucial for maintaining the balance of receptors on the cell surface and ensuring that cells can respond to external signals.
Conclude that recycling endosomes are the vesicles responsible for carrying receptors back to the plasma membrane, distinguishing them from other endosomal types that have different roles in the cell.
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