GR8 1STQTR SCI L2 Cell Theory and Microscopy Quiz

What were some of the earliest tools used to observe small objects?

• X-ray machines

• Magnifying glasses

• Telescopes

• Ultrasound devices

Who was Antonie van Leeuwenhoek?

• A physicist

• A botanist

• A microbiologist

• A chemist

What term did Robert Hooke use to describe the tiny units he observed?

• Cella

• Atom

• Molecule

• Organism

In what year did Robert Hooke publish 'Micrographia'?

• 1625

• 1705

• 1685

• 1665

Which two scientists proposed that cells are the basic building blocks of all living things?

• Virchow and Pasteur

• Hooke and Leeuwenhoek

• Schleiden and Schwann

• Darwin and Wallace

What does the modern cell theory state about all organisms?

• They are made of atoms

• They are composed of cells

• They are made of organs

• They are made of tissues

What is the basic unit of organization of all living things according to cell theory?

• Organism

• Cell

• Organ

• Tissue

What does the third principle of the cell theory state?

• All cells arise from pre-existing cells

• All cells are large

• All cells are visible

• All cells are identical

How did Leeuwenhoek’s microscopes differ from earlier magnifying tools?

• They were simpler

• They had better resolution

• They were made of glass

• They were larger

What is the significance of the cell theory in modern biology?

• It defines the structure of DNA

• It provides a framework for understanding living organisms

• It explains the origin of life

• It describes chemical reactions