Who was the first person to see a live cell?
Anton van Leeuwenhoek
Schleiden and Schwann
Rudolf Virchow
Robert Hooke
Anton van Leeuwenhoek, who described the algae Spirogyra in 1674, was the first person to see a living cell under a microscope. Therefore, the correct answer is option 1 which is Anton van Leeuwenhoek.
Explanation for the incorrect options:
Option 2 is incorrect because the cell concept was proposed by German botanists Matthias Jacob Schleiden and Theodor Schwann.
Option 3 is incorrect, in order to give the cell theory its ultimate form, Rudolf Virchow altered the Schleiden and Schwann hypothesis.
Option 4 is incorrect because Hooke's discovery of the cell was made possible by the development of the microscope. Hooke saw cork structures that were box-shaped and gave them the name "cells" because they resembled monastic cells or flats.