Q.
Who concluded from his studies that the presence of a cell wall is a unique feature of plant cells?
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NTA AbhyasNTA Abhyas 2020Cell : The Unit of Life
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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.