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

ER Processing and Transport

Cell Biology

13. Intracellular Protein Transport

ER Processing and Transport

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Multiple Choice

Which of the following is responsible for recognizing the ER signal sequence?

Signal Recognition Particle

Signal Recognition Particle Receptor

Translocon

Stop Transfer Sequence

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Verified step by step guidance

Understand the context: The question is about the process of protein targeting to the endoplasmic reticulum (ER) in eukaryotic cells.

Identify the key term: 'ER signal sequence' is a short peptide sequence that directs the ribosome to the ER membrane.

Recognize the role of the Signal Recognition Particle (SRP): The SRP is a ribonucleoprotein that binds to the ER signal sequence as it emerges from the ribosome.

Consider the function of the SRP: Once the SRP binds to the signal sequence, it pauses translation and directs the ribosome to the ER membrane by interacting with the SRP receptor.

Conclude the recognition process: The initial recognition of the ER signal sequence is specifically performed by the Signal Recognition Particle (SRP), which is the first step in targeting proteins to the ER.