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  4. Who concluded from his studies that the presence of a cell wall is a unique feature of plant cells?

Q. Who concluded from his studies that the presence of a cell wall is a unique feature of plant cells?

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Solution:

Theodore Schwann (1839), a British Zoologist, studied different types of animal cells and reported that cells had a thin outer layer which is today known as the ‘plasma membrane’. He also concluded, based on his studies on plant tissues, that the presence of cell wall is a unique character of the plant cells. On the basis of this, Schwann proposed the hypothesis that the bodies of animals and plants are composed of cells and products of cells.