Multiple Choice
Which organelle contains digestive (hydrolytic) enzymes and carries out intracellular degradation in animal cells?
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13. Intracellular Protein Transport
Lysosomal and Degradation Pathways
Multiple Choice
In eukaryotic cells, acid hydrolases responsible for degrading macromolecules are primarily found in which organelle?
A
Golgi apparatus
B
Peroxisome
C
Mitochondrion
D
Lysosome
Verified step by step guidance1
Understand the function of acid hydrolases: these are enzymes that break down macromolecules such as proteins, lipids, nucleic acids, and carbohydrates by hydrolyzing them in an acidic environment.
Recall the organelles involved in degradation and recycling within eukaryotic cells. Consider which organelle maintains an acidic internal pH suitable for acid hydrolase activity.
Evaluate the options: the Golgi apparatus is mainly involved in modifying and sorting proteins, peroxisomes handle oxidative reactions, and mitochondria are the site of energy production.
Identify the lysosome as the organelle containing acid hydrolases and maintaining an acidic environment (pH ~4.5-5) optimal for these enzymes to function.
Conclude that acid hydrolases responsible for degrading macromolecules are primarily found in the lysosome.
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