The video tutorial explores the history and development of cell theory. It begins with Robert Hooke's discovery of cells in cork using a simple microscope in 1665. Antonie van Leeuwenhoek's subsequent identification of microorganisms, including bacteria and yeast, further advanced the understanding of cells. The video then discusses the contributions of Theodor Schwann and Rudolf Virchow in the 19th century, who established the foundational principles of cell theory: all living organisms are composed of cells, the cell is the basic unit of life, and all cells arise from pre-existing cells.

What did Robert Hooke observe in the cork that led to the naming of 'cells'?

• Bacteria

• Small boxes

• Tiny animals

• Blood cells

Who was the first person to observe bacteria using a microscope?

• Robert Hooke

• Theodor Schwann

• Antonie van Leeuwenhoek

• Rudolf Virchow

What is the first part of the cell theory developed by Theodor Schwann?

• Cells are the basic unit of life

• All cells come from pre-existing cells

• All organisms are made of one or more cells

• Cells can appear spontaneously

According to the cell theory, what is the basic unit of life?

• Cells

• Molecules

• Atoms

• Tissues

What did Rudolf Virchow conclude about the origin of cells?

• Cells can form from non-living matter

• Cells are the basic unit of life

• Cells develop from other cells

• Cells are only found in plants