What is the correct sequence of steps in phagocytosis?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $25.99Unlock all

Prepare for your Microbial Growth Phases, Oxygen Needs, and Immunity Types Test. Use our multiple-choice questions and detailed explanations for each answer to enhance your understanding and ensure success!

Multiple Choice

What is the correct sequence of steps in phagocytosis?

Explanation:
In phagocytosis, the process unfolds in a specific order: the cell first engulfs the particle, forming a phagosome around it. That phagosome then fuses with a lysosome to become a phagolysosome, where digestive enzymes break down the contents. After digestion, any undigested material is expelled from the cell. This sequence—engulfment, formation of a phagosome, digestion in the phagolysosome, then expulsion—fits how the cellular vesicles interact and where digestion occurs. The other sequences put digestion or expulsion before the phagosome has formed or before digestion has occurred, which isn’t possible because digestion happens inside the phagolysosome after fusion with a lysosome.

In phagocytosis, the process unfolds in a specific order: the cell first engulfs the particle, forming a phagosome around it. That phagosome then fuses with a lysosome to become a phagolysosome, where digestive enzymes break down the contents. After digestion, any undigested material is expelled from the cell.

This sequence—engulfment, formation of a phagosome, digestion in the phagolysosome, then expulsion—fits how the cellular vesicles interact and where digestion occurs. The other sequences put digestion or expulsion before the phagosome has formed or before digestion has occurred, which isn’t possible because digestion happens inside the phagolysosome after fusion with a lysosome.

More Multiple Choice Questions
Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy