During digesting the phagocytosed food particles vesicles formed from fusion of phagocytic vacuole with the enzymes secreted by Golgi apparantus are called_______?
Correct answer: C. Secondary lysosomes
- A. Lysosomes
- B. Primary lysosomes
- C. Secondary lysosomes
- D. Food vacuole
Explanation
When a primary lysosome fuses with a phagocytic or food vacuole, its digestive enzymes act on the engulfed material and the resulting structure is called a secondary lysosome, or phagolysosome. A primary lysosome is still unfused and contains inactive digestive enzymes. Students often choose food vacuole because it contains the engulfed particles, but fusion with a lysosome gives the combined compartment its secondary-lysosome identity.
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