Read the following Assertion and Reason and choose the correct option. Assertion: Theodore Schwann discovered the presence of cell wall Reason: He studied different types of animal cells and reported that cells had a thin outer layer which is today known as the ‘plasma membrane’.

Step-by-step 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.