Multiple Choice
Which of the following sequences represents the order in which a protein made in the rough endoplasmic reticulum might move through the endomembrane system?
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2. Cell Chemistry & Cell Components
Endomembrane System: Digestive Organelles
Multiple Choice
Hydrolytic enzymes must be segregated and packaged to prevent general destruction of cellular components.
In animal cells, which of the following organelles contains these hydrolytic enzymes?
A
Rough ER.
B
Central vacuole.
C
Smooth ER.
D
Lysosomes.
E
Golgi apparatus.
Verified step by step guidance1
Understand the role of hydrolytic enzymes: These enzymes are responsible for breaking down biomolecules through the addition of water, a process known as hydrolysis.
Identify the function of lysosomes: Lysosomes are membrane-bound organelles that contain hydrolytic enzymes. They are involved in digesting excess or worn-out organelles, food particles, and engulfed viruses or bacteria.
Consider the need for segregation: Hydrolytic enzymes need to be contained within a specific organelle to prevent them from digesting essential cellular components. Lysosomes provide this containment.
Review the structure of lysosomes: Lysosomes have a single membrane that isolates their acidic environment and enzymes from the rest of the cell, ensuring that the enzymes only act on intended targets.
Compare with other organelles: While the rough ER, smooth ER, central vacuole, and Golgi apparatus have important roles, they do not primarily function to contain hydrolytic enzymes like lysosomes do.
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