How was the cell discovered by Robert Hook?

Correct option is A

The correct answer is (A) By observing cork.

Explanation:

• Robert Hooke discovered the cell in 1665 when he observed a thin slice of cork under a microscope.
• He noted small, box-like structures and termed them "cells", as they resembled small rooms or "cellula" in Latin.

Information Booster:

• Robert Hooke (1635–1703): An English scientist, the first to observe the microscopic structure of cork.
• Cell Theory Contribution: His discovery laid the foundation for the cell theory, which states that all living organisms are composed of cells.
• Microscope Used: Hooke used a self-designed compound microscope to make his discovery.
• Book Published: His findings were published in his book "Micrographia" in 1665.
• Cork Cells: Hooke observed that cork cells were empty, as they were actually the remains of dead plant cells.
• Advancement: Later, scientists like Anton van Leeuwenhoek observed living cells under a microscope, improving the understanding of cell structure.