The Cell Theory

Which is not true of the cell theory?

• All living organisms are composed of cells.

• All cells have a nucleus, which acts like a brain of the cell.

• All cells come from preexisting cells.

• The cell is the fundamental unit of structure and function in a living thing.

Robert Hooke was the first scientist to give the "cell" its name. Which statement about him is true?

• He looked at an onion skin with his naked eye to see cells.

• Under a microscope, he observed box-like components from cork.

• He used the microscope to observe skin cells.

• He looked at bacterial cells under a microscope he invented.

The cell theory was not complete until Rudolph Virchow discovered that...

• cells are alive.

• there are two types of cells (prokaryotic/eukaryotic)

• all cells come from preexisting cells.

• cells are the basic building blocks of life.

This scientist was the first to observe cells, and gave them their name.

• Robert Hooke

• Anton van Leeuwenhoek

• Matthias Schleiden

• Theodor Schwann

• Rudolph Virchow

This scientist discovered unicellular organisms and made improvements to the microscope.

• Robert Hooke

• Anton van Leeuwenhoek

• Matthias Schleiden

• Theodor Schwann

• Rudolph Virchow

This scientist concluded that all plants are made up of cells.

• Robert Hooke

• Matthias Schleiden

• Theodor Schwann

• Rudolph Virchow

• Anton van Leeuwenhoek

This scientist concluded that all animals are made up of cells.

• Robert Hooke

• Anton van Leeuwenhoek

• Matthias Schleiden

• Theodor Schwann

• Rudolph Virchow

This scientist concluded that all cells come from preexisting cells.

• Robert Hooke

• Anton van Leeuwenhoek

• Rudolph Virchow

• Matthias Schleiden

• Theodor Schwann

The _______ is the smallest structural and functional unit of a living thing. (this will be matching on the test)

• cell

• metabolism

• nutrition

• defense

Which scientist discovered bacteria?

• Jansen

• Hooke

• Van Leuwenhoek

• Newton