Multiple Choice
In eukaryotic cells, which organelle primarily modifies, sorts, and packages proteins into vesicles for secretion or delivery to other organelles?
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13. Intracellular Protein Transport
Golgi Processing and Transport
Multiple Choice
Which of the following best describes the primary function of the Golgi apparatus in eukaryotic cells?
A
It directly translates mRNA into polypeptides using ribosomes bound to its surface.
B
It degrades damaged organelles and macromolecules using hydrolytic enzymes in an acidic lumen.
C
It synthesizes ATP through oxidative phosphorylation on the inner membrane.
D
It modifies, sorts, and packages proteins and lipids into vesicles for secretion or delivery to other organelles.
Verified step by step guidance1
Identify the main functions of each organelle mentioned in the options to understand their roles in the cell.
Recall that the Golgi apparatus is involved in processing and trafficking molecules, particularly proteins and lipids, after they are synthesized in the endoplasmic reticulum.
Understand that the Golgi apparatus modifies proteins and lipids by adding carbohydrate groups or other modifications, which is essential for their proper function and destination.
Recognize that the Golgi apparatus sorts these modified molecules and packages them into vesicles, which then transport them to their target locations, such as the cell membrane or lysosomes.
Conclude that the option describing the Golgi apparatus as modifying, sorting, and packaging proteins and lipids into vesicles for secretion or delivery to other organelles best matches its primary function.
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