Cell Theory

Which of the following is NOT one of the three main parts of the cell theory?

• All organisms are composed of one or more cells.

• The cell is the basic unit of structure and organization in organisms.

• All cells come from pre-existing cells.

• Cells spontaneously generate from non-living matter.

Who is credited with inventing the first compound microscope?

• Anton van Leeuwenhoek

• Robert Hooke

• Zacharias Jansen

• Matthias Schleiden

What unusual sample did Anton van Leeuwenhoek examine to discover bacteria?

• Pond water

• Plant leaves

• Dental scrapings

• Animal blood

Who coined the term "cell" after observing cork under a microscope?

• Theodore Schwann

• Robert Hooke

• Rudolf Virchow

• Anton van Leeuwenhoek

Which two scientists are credited with concluding that all plants and all animals, respectively, are made of cells?

• Robert Hooke and Anton van Leeuwenhoek

• Matthias Schleiden and Theodore Schwann

• Rudolf Virchow and Robert Remack

• Zacharias Jansen and Sir Isaac Newton

Pick the three (3) parts of cell theory.

• Cells are the smallest living organisms

• Cells hold prisoners

• Cells make up living organisms

• Cells come from living cells