How Do Proteins Become Embedded in the Membrane of the Endoplasmic

question 17

Multiple Choice

How do proteins become embedded in the membrane of the endoplasmic reticulum?

• A)by protein chaperones that insert polypeptides into the ER membrane
• B)by splicing of proteins on either side of the ER membrane
• C)via stop- and start-transfer sequences that stop and start translocation of a polypeptide through the ER membrane,resulting in transmembrane proteins
• D)by post-translational import can results in a transmembrane ER protein
• E)via transit sequences that target polypeptides made in the cytosol for the ER membrane

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Definitions:

Skin

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A medication used to treat glaucoma, epilepsy, altitude sickness, and as a diuretic to manage fluid retention.