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According to Schwann, which structure is a unique character of plant cells?
AThe plasma membrane
BThe cell nucleus body
CThe ribosome pair
DThe plant cell wall
Answer & Solution
Correct answer: D. The plant cell wall
1. Schwann found a thin outer layer on animal cells as well.
2. That layer is what we now call the plasma membrane, and both kinds share it.
3. The presence of a cell wall is unique to the plant cells.
_Source: NCERT Class 11 Biology, Ch 8 'Cell: The Unit of Life'_
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