Cell Scientists
Who discovered and named cells in 1665?
Robert Hooke
How many parts does the modern cell theory have?
3
What are cells (more than one acceptable answer)?
Possible answers:
Smallest structural and functional unit of an organism.
Basic units of life
_______ - increase in size
Growth
What were cells named after?
Rooms in a monastery, which were called cells.
Who improved the microscope and discovered bacteria and protozoa in 1670?
Anton van Leeuwenhoek
Mathias Schleiden, Theodor Schwann, Robert Virchow
What do you call a cell with no nucleus?
Prokaryotic
_______ - protection against enemies
Defense
Who found out that all plant tissues are made of cells in 1838?
Mathias Schlieden
Which two people created the original cell theory (the one with two parts)?
Mathias Schleiden, Theodor Schwann
What do you call a cell with a nucleus?
Eukaryotic
____________ - producing offspring
Reproduction
How did Leeuwenhoek discover bacteria?
He looked at dental scrapings.
Who found out that all animal tissues are made of cells in 1839?
Theodor Schwann
Name all three properties of the cell theory (answers may vary).
1) All organisms are composed of cells
2) Cells are the basic unit of life
3) All cells result from the division of previously existing cells
________ - perceiving and responding to changes in the environment.
Response
_________ - obtaining food to provide energy for growth
Nutrition
What is the structure of a cell?
Who proposed that all cells are created from the division of two previously existing cells in 1855?
Robert Virchow
What year was the cell theory completed (all three parts added)?
1855
__________ - chemical reactions inside the cell
Metabolism
___________ - keeping conditions inside the organisms within tolerable limits (balanced)