Multiple Choice
In eukaryotic cells, which organelle contains hydrolytic enzymes that break down ingested food particles and worn-out cellular components?
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13. Intracellular Protein Transport
Lysosomal and Degradation Pathways
Multiple Choice
In eukaryotic cells, what is the primary function of the lysosome?
A
To package and sort newly synthesized proteins for secretion at the Golgi apparatus
B
To degrade macromolecules and worn-out organelles using acid hydrolases in an acidic lumen
C
To generate most cellular ATP through oxidative phosphorylation
D
To synthesize and fold secreted proteins in the rough endoplasmic reticulum
Verified step by step guidance1
Identify the organelle in question: the lysosome, which is a membrane-bound structure found in eukaryotic cells.
Recall the primary role of lysosomes, which is related to the breakdown and recycling of cellular components.
Understand that lysosomes contain acid hydrolase enzymes that function optimally in an acidic environment inside the lysosome.
Recognize that these enzymes degrade macromolecules such as proteins, lipids, nucleic acids, and carbohydrates, as well as worn-out or damaged organelles.
Conclude that the main function of lysosomes is to act as the cell's digestive system, breaking down and recycling cellular waste and debris.
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