The Wacky History of Cell Theory

What are the three main components of the cell theory?

• Cells are the smallest unit of life, cells can exist independently, and cells do not contain genetic material.

• Cells can only be seen with a microscope, cells contain DNA, and cells can divide.

• All living things are made of cells, cells are the basic unit of life, and all cells come from preexisting cells.

• Cells are always microscopic, cells can spontaneously generate, and cells are found only in animals.

What did Anton van Leeuwenhoek use to make his own microscope?

• Animal tissues

• Telescope parts

• A piece of cork

• Glass lenses

Who is credited with the discovery of bacteria?

• Theodor Schwann

• Matthias Schleiden

• Anton van Leeuwenhoek

• Robert Hooke

What did Robert Hooke and Anton van Leeuwenhoek have in common?

• Both contributed to the development of cell theory

• Both invented the microscope

• Both discovered bacteria

• Both had a feud with Isaac Newton

What did Robert Hooke observe that led him to coin the term 'cell'?

• Bacteria in dental scrapings

• Animal tissues under a microscope

• Plant cells in a leaf

• Chambers within cork under a microscope

Which scientist had a significant feud with Isaac Newton?

• Anton van Leeuwenhoek

• Robert Hooke

• Theodor Schwann

• Matthias Schleiden

Who proposed that all plants are made of cells?

• Anton van Leeuwenhoek

• Matthias Schleiden

• Robert Remak

• Rudolph Virchow

Which scientist is known for studying animal cells and concluding that all animals are made of cells?

• Rudolph Virchow

• Matthias Schleiden

• Theodor Schwann

• Robert Hooke

What was the main point of contention between Matthias Schleiden and Theodor Schwann?

• The structure of plant cells

• Whether cells could spontaneously generate

• The function of cells in animals

• The origin of cells

Who is associated with the concept that all cells come from preexisting cells?

• Matthias Schleiden

• Rudolph Virchow

• Robert Remak

• Both B and C