Multiple Choice
In the context of lysosomal and degradation pathways, which organelles are often described as the cell’s recycling centers because they break down macromolecules and worn-out organelles for reuse?
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13. Intracellular Protein Transport
Lysosomal and Degradation Pathways
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Macrophagy differs from microphagy in which of the following ways?
A
Macrophagy degrades proteins and microphagy degrades small molecules
B
Macrophagy is involved in cell death, microphagy is involved with taking things into the cell
C
Macrophagy uses two membranes, microphagy uses one membrane
D
Macrophagy uses autophagosomes, microphagy uses lysosomes
Verified step by step guidance1
Understand the terms: Macrophagy and microphagy are processes related to the degradation and recycling of cellular components.
Macrophagy, also known as macroautophagy, involves the formation of a double-membrane structure called an autophagosome that engulfs cellular material.
Microphagy, or microautophagy, involves the direct engulfment of cytoplasmic material by the lysosome through invagination or protrusion of the lysosomal membrane.
Compare the membrane usage: Macrophagy uses a double-membrane structure (autophagosome), while microphagy involves a single membrane (lysosome).
Identify the correct statement: The key difference is that macrophagy uses two membranes (autophagosome formation), whereas microphagy uses one membrane (lysosomal engulfment).
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