Table of contents

1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

13. Intracellular Protein Transport

Vesicular Budding, Transport, and Coat Proteins

Cell Biology

13. Intracellular Protein Transport

Vesicular Budding, Transport, and Coat Proteins

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Multiple Choice

Which of the following coats is used on vesicles that transport molecules from the Golgi to the ER?

COPI

COPII

COPIII

Clathrin

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Verified step by step guidance

Understand the role of vesicle coats in cellular transport: Vesicle coats are protein complexes that cover vesicles, helping them to bud off from membranes and target them to specific locations within the cell.

Identify the direction of transport: The problem specifies transport from the Golgi apparatus to the Endoplasmic Reticulum (ER). This is known as retrograde transport.

Recall the specific coat proteins associated with different transport pathways: COPI is associated with retrograde transport from the Golgi to the ER, while COPII is associated with anterograde transport from the ER to the Golgi.

Eliminate incorrect options: COPII and Clathrin are not involved in Golgi to ER transport. COPII is involved in ER to Golgi transport, and Clathrin is involved in endocytosis and transport between the Golgi and other organelles.

Conclude with the correct coat protein: Based on the direction of transport and the specific roles of coat proteins, COPI is the coat used for vesicles transporting molecules from the Golgi to the ER.