Kingdom Protista Features · NCERT Biology

Ciliated protozoans like Paramecium possess a cavity that opens to the outside of the cell surface called the:

  1. Pulsatile vacuole
  2. Oral gullet
  3. Anal pore
  4. Food vacuole
Show answer and explanation

Correct answer: Oral gullet

Paramecium has a permanent funnel-shaped oral gullet that opens to the exterior. The coordinated movement of cilia drives water carrying food particles into this cavity, which then passes deeper into the cell.

Difficulty: Medium Question 8 of 20

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