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Immune system cells use damaging proteases and reactive oxygen species to destroy foreign invaders. The immune system cells are not harmed because the microbes are sequestered in vesicles. How did the invaders get to the vesicles?
  • a)
    Active transport
  • b)
    Phagocytosis
  • c)
    Exocytosis
  • d)
    Pinocytosis
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Immune system cells use damaging proteases and reactive oxygen species...
In the context of the immune system, phagocytosis is the process by which immune cells engulf and internalize foreign invaders such as microbes. During phagocytosis, the immune cell surrounds the invader and forms a vesicle called a phagosome. The phagosome then fuses with lysosomes, forming a phagolysosome, where damaging proteases and reactive oxygen species are released to destroy the invaders.
So, the invaders reach the vesicles through phagocytosis. The immune cells recognize the presence of foreign substances and actively engulf them by extending pseudopods to surround the invaders and internalize them into vesicles for destruction. This sequestration in vesicles allows the immune system to isolate and neutralize the invaders while minimizing harm to the surrounding cells.
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Immune system cells use damaging proteases and reactive oxygen species to destroy foreign invaders. The immune system cells are not harmed because the microbes are sequestered in vesicles. How did the invaders get to the vesicles?a)Active transportb)Phagocytosisc)Exocytosisd)PinocytosisCorrect answer is option 'B'. Can you explain this answer? for MCAT 2025 is part of MCAT preparation. The Question and answers have been prepared according to the MCAT exam syllabus. Information about Immune system cells use damaging proteases and reactive oxygen species to destroy foreign invaders. The immune system cells are not harmed because the microbes are sequestered in vesicles. How did the invaders get to the vesicles?a)Active transportb)Phagocytosisc)Exocytosisd)PinocytosisCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for MCAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Immune system cells use damaging proteases and reactive oxygen species to destroy foreign invaders. The immune system cells are not harmed because the microbes are sequestered in vesicles. How did the invaders get to the vesicles?a)Active transportb)Phagocytosisc)Exocytosisd)PinocytosisCorrect answer is option 'B'. Can you explain this answer?.
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