The Cell Theory

Who was the first person to see cells under the microscope and give them a name?

• Anton van Leeuwenhoek
• Robert Hooke
• Theodor Schwann
• Matthias Schleiden

He discovered that all plants were made of cells, which contributed to the development of the cell theory:

• Anton van Leeuwenhoek
• Robert Hooke
• Theodor Schwann
• Matthias Schleiden

He advanced the cell theory with his conclusion that cells could only come from other cells:

• Anton van Leeuwenhoek
• Rudolph Virchow
• Theodor Schwann
• Robert Hooke

Which of the following is NOT one of the main components of the cell theory?

• cells must contain DNA
• all living things are made of cells
• cells can only come from other cells
• cells are the basic unit of life

Rudolph Virchow's observations helped to disprove was commonly held belief of the time?

• evolution
• the existence of molecules
• spontaneous generation
• atomic models

Which technology was essential for the development of the cell theory?

• telescopes
• antiseptics
• microwaves
• microscopes

Which of these scientists was the first person to observe what are now called bacteria?

• Anton von Leeuwenhoek
• Matthias Schleiden
• Rudolf Virchow
• Robert Hooke

What is spontaneous generation?

• life only comes from single-celled organisms
•  life can emerge from non-living sources
• life can randomly end at any time
• life starts when cells divide