Cell Theory

True or False: Electron microscopes make it possible to view objects at a greater level of detail than a light microscope

• True

• False

Why might a scientist prefer to use a light microscope over an electron microscope?

• Light microscopes allow you to observe a greater level of detail than electron microscopes

• Light microscopes allow you to observe living cells

• Light microscopes allow you to see the DNA inside of cells

• Light microscopes allow you to only observe objects in a dark room

What is one disadvantage of light microscopes?

• Light microscopes can only magnify up to 20x the original size

• Light microscopes can only magnify up to 2000x the original size

• Light microscopes are not portable

• Light microscopes are expensive

Which scientist discovered that all animals are made of cells?

• Theodor Schwann

• Matthias Schleiden

• Robert Hooke

• Rudolph Virchow

Which scientist discovered that all plants are composed of cells?

• Theodor Schwann

• Matthias Schleiden

• Robert Hooke

• Anton van Leeuwenhoek

Which scientist discovered cells by looking at cork through a microscope?

• Theodor Schwann

• Matthias Schleiden

• Robert Hooke

• Rudolph Virchow

Which scientist declared that "all living cells can only come from other living cells"?

• Theodor Schwann

• Anton van Leeuwenhoek

• Robert Hooke

• Rudolph Virchow

Which scientist discovered both protozoa and bacteria?

• Anton van Leeuwenhoek

• Robert Hooke

• Rudolph Virchow

• Theodor Schwann

Which of the following are components of traditional cell theory? (Select more than one)

• Cells are the basic unit of structure in all living things

• All organisms are made of cells

• All cells come from pre-existing cells

• Cells are the smallest unit of matter

According to cell theory, which of the following are made of cells? (Check all that apply)

• Flowers

• Rocks

• Blood

• Water

• Bacteria