Multiple choice

All animal and plant cells are surrounded by a thin:

  1. nucleus

  2. vacuole

  3. cell membrane

  4. cell wall
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Both plant and animal cells possess a cell membrane that acts as a barrier separating the interior of the cell from the outside environment. While plant cells also have a rigid outer cell wall, animal cells do not, making the cell membrane the common boundary for both. Nuclei and vacuoles are internal organelles rather than surrounding boundaries.

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