Multiple Choice
In the context of lysosomal and degradation pathways, which organelle is primarily responsible for degrading cellular waste and recycling macromolecules?
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13. Intracellular Protein Transport
Lysosomal and Degradation Pathways
Multiple Choice
In an animal cell, what is the primary function of the lysosome?
A
It synthesizes ATP through oxidative phosphorylation using the electron transport chain.
B
It contains hydrolytic enzymes that digest macromolecules and recycle worn-out organelles and cellular debris.
C
It stores and protects the cell’s genetic material and is the site of DNA replication.
D
It modifies and sorts newly synthesized proteins for secretion and delivery to other organelles.
Verified step by step guidance1
Identify the organelle in question: the lysosome, which is a membrane-bound organelle found in animal cells.
Recall the primary function of lysosomes, which is related to digestion and recycling within the cell.
Understand that lysosomes contain hydrolytic enzymes capable of breaking down macromolecules such as proteins, lipids, carbohydrates, and nucleic acids.
Recognize that lysosomes also digest worn-out organelles and cellular debris, helping to maintain cellular health by recycling components.
Conclude that the main role of lysosomes is to act as the cell's digestive system, breaking down materials and recycling cellular components.
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