Multiple Choice
Which of the following terms describes the cell eating itself?
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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 proteins for secretion by modifying them and sorting them into secretory vesicles
B
To synthesize ATP through oxidative phosphorylation across the inner membrane
C
To replicate DNA and coordinate cell division during the cell cycle
D
To degrade and recycle macromolecules and damaged organelles using acid hydrolases in an acidic lumen
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 to break down various biomolecules such as proteins, lipids, nucleic acids, and carbohydrates.
Understand that lysosomes contain acid hydrolase enzymes that function optimally in an acidic environment inside the lysosome's lumen.
Recognize that lysosomes are involved in degrading damaged organelles and macromolecules, recycling their components for reuse by the cell.
Differentiate lysosomes from other organelles by their function: unlike the Golgi apparatus (protein packaging), mitochondria (ATP synthesis), or nucleus (DNA replication and cell cycle control), lysosomes specialize in degradation and recycling.
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