Table of contents

1. Introduction to Microbiology3h 22m
2. Disproving Spontaneous Generation1h 18m
3. Chemical Principles of Microbiology3h 38m
4. Water1h 28m
5. Molecules of Microbiology2h 23m
6. Cell Membrane & Transport3h 28m
7. Prokaryotic Cell Structures & Functions5h 52m
8. Eukaryotic Cell Structures & Functions2h 18m
9. Microscopes2h 46m
10. Dynamics of Microbial Growth4h 36m
11. Controlling Microbial Growth4h 10m
12. Microbial Metabolism5h 16m
13. Photosynthesis2h 31m
14. DNA Replication2h 25m
15. Central Dogma & Gene Regulation7h 14m
16. Microbial Genetics4h 44m
17. Biotechnology3h 0m
18. Viruses, Viroids, & Prions4h 56m
19. Innate Immunity7h 15m
20. Adaptive Immunity7h 14m
21. Principles of Disease6h 57m

8. Eukaryotic Cell Structures & Functions

Endomembrane System: Protein Secretion

Microbiology

8. Eukaryotic Cell Structures & Functions

Endomembrane System: Protein Secretion

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Multiple Choice

Which of the following is the most common pathway taken for a newly synthesized protein to be secreted?

Rough ER → Golgi→ Transport vesicle → Nucleus.

Golgi → Rough ER → Lysosome → Transport vesicle → Cell membrane.

Rough ER → Golgi → Transport vesicle → Cell membrane.

Rough ER → Lysosome → Transport vesicle → Cell membrane.

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Verified step by step guidance

Understand the process of protein synthesis and secretion in eukaryotic cells, which involves several organelles working in a specific sequence.

Recognize that the Rough Endoplasmic Reticulum (Rough ER) is the starting point for the synthesis of proteins destined for secretion. Proteins are synthesized by ribosomes attached to the Rough ER.

After synthesis, proteins are transported from the Rough ER to the Golgi apparatus. The Golgi apparatus modifies, sorts, and packages proteins for secretion.

From the Golgi apparatus, proteins are packaged into transport vesicles. These vesicles are responsible for moving the proteins to their next destination.

Finally, the transport vesicles fuse with the cell membrane, releasing the proteins outside the cell. This is the typical pathway for protein secretion: Rough ER → Golgi → Transport vesicle → Cell membrane.