How Does a Plasma Membrane Protein Become Imbedded in the Membrane

question 45

Multiple Choice

How does a plasma membrane protein become imbedded in the membrane?

• A)Ribosomes attach to the plasma membrane and translation of the peptide occurs directly on the PM.
• B)Ribosomes enter the endoplasmic reticulum and make the proteins within the ER.
• C)Once the signal peptide is translated, the ribosome complex is escorted to the PM, translation continues and the peptide is inserted through a pore in the membrane.
• D)Once the signal peptide is translated, the ribosome complex is escorted to the ER, translation continues and the peptide is inserted through a pore in the membrane.
• E)Once completed, the protein is escorted to the PM and a chaperone protein pushes it in.

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