Multiple Choice
Which of the following is not a protein coat?
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13. Intracellular Protein Transport
Vesicular Budding, Transport, and Coat Proteins
Multiple Choice
In the context of vesicular budding, transport, and coat proteins, which organelle is primarily responsible for sorting, modifying, and packaging proteins into transport vesicles for delivery to different cellular destinations?
A
Peroxisome
B
Mitochondrion
C
Golgi apparatus
D
Nucleolus
Verified step by step guidance1
Understand the role of vesicular budding and transport in the cell, which involves the formation of vesicles that carry proteins and lipids to specific destinations within the cell.
Recall that coat proteins, such as clathrin, COPI, and COPII, help in shaping the vesicle and selecting cargo during vesicle formation.
Identify the organelle responsible for sorting, modifying, and packaging proteins into these transport vesicles. This organelle receives proteins from the endoplasmic reticulum and further processes them.
Recognize that the Golgi apparatus is the key organelle that modifies proteins (e.g., glycosylation), sorts them based on their destination, and packages them into vesicles for delivery to various cellular locations.
Eliminate other options: peroxisomes are involved in lipid metabolism and detoxification, mitochondria generate energy, and the nucleolus is involved in ribosome synthesis, none of which primarily handle protein sorting and vesicle packaging.
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