Biology Practice Problems Endomembrane System Practice Problems Solution: Choose which protein/(s) in the list below are syn...

Solution: Choose which protein/(s) in the list below are synthesized by ribosomes attached to the ER.A. A protein that resides in the chloroplastB. A protein that will be secreted into the extracellular spaceC. A nuclear proteinD. A membrane protein that shuttles between the plasma membrane and an endosomeE. A protein that resides between the inner and outer nuclear membranes

Problem

Choose which protein/(s) in the list below are synthesized by ribosomes attached to the ER.

A. A protein that resides in the chloroplast

B. A protein that will be secreted into the extracellular space

C. A nuclear protein

D. A membrane protein that shuttles between the plasma membrane and an endosome

E. A protein that resides between the inner and outer nuclear membranes

Solution

Proteins are synthesized by ribosomes in two main locations inside the cell: in the endoplasmic reticulum and in the cytosol. After synthesis, proteins may or may not be brought to the Golgi bodies for further processing, depending on the site of its function.

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