Cell Theory Study Guide

Complete the timeline that shows the progression of the development of the cell theory. Label the scientist and their discovery.

• Leeuwenhoek improved the microscope

• 1670s

• Schwann & Schleiden collaborated

• 1665

• Virchow- all cells come from other cells

• 1885

• Hooke coined the term “cell”

• 1839

Which of the following objects are living?

• bacteria

• flower

• diamond

• fungi

• water

What are the parts of the cell theory? Check ALL that apply.

• All cells come from preexisting cells.

• All living things are composed of cells.

• Cells are the basic unit of life.

• Cells can only be seen with a microscope.

Cell Function = Defense

• protection against enemies

• chemical reactions inside the cell

• perceiving and responding to changes in the environment

• increasing in size

Cell Function = Growth

• protection against enemies

• chemical reactions inside the cell

• perceiving and responding to changes in the environment

• increasing in size

Cell Function = Metabolism

• protection against enemies

• chemical reactions inside the cell

• perceiving and responding to changes in the environment

• increasing in size

Cell Function = Response

• protection against enemies

• chemical reactions inside the cell

• perceiving and responding to changes in the environment

• increasing in size

Cell Function = Nutrition

• protection against enemies

• obtaining food to provide energy for growth

• perceiving and responding to changes in the environment

• increasing in size

Cell Function = Homeostasis

• keeping conditions inside the organism balanced

• obtaining food to provide energy for growth

• perceiving and responding to changes in the environment

• increasing in size

How do you determine whether something is living or nonliving? What evidence did you use?