to understand how cells function as the fundamental unit of life, you must first become familiar with the individual roles of the cellular structures and organelles.

Organelles of the endomembrane system

The various parts of the endomembrane system serve different functions in the cell. In this activity, you will identify the roles of each part of the endomembrane system.

Drag each function to the appropriate bin.

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Sites of protein synthesis

All proteins are synthesized by ribosomes in the cell. Some ribosomes float freely in the cytosol, while others are bound to the surface of the endoplasmic reticulum. Most proteins made by free ribosomes function in the cytosol. Proteins made by bound ribosomes either function within the endomembrane system or pass through it and are secreted from the cell.

Which of the following proteins are synthesized by bound ribosomes?

Select all that apply.

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