Exploring the Weird History of Cell Theory

What are the three fundamental parts of the cell theory?

• All organisms are multicellular, cells are from preexisting cells, cells are the basic unit of life

• All organisms are composed of cells, cells are the basic unit of structure, all cells come from preexisting cells

• Only animals are made of cells, cells can be created from nonliving matter, cells are the smallest unit of life

• Cells can spontaneously generate, cells are not the basic unit of life, all organisms are unicellular

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NGSS.MS-LS1-1

Who is credited with creating the first compound microscope?

• Anton van Leeuwenhoek

• Robert Hooke

• Matthias Schleiden

• Zacharias Janssen

What did Anton van Leeuwenhoek discover using his homemade microscope?

• Viruses

• Animalcules or bacteria

• Nerve cells

• Plant cells

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NGSS.MS-LS1-1

What term did Robert Hooke coin after observing a piece of cork under a microscope?

• Microorganism

• Cell

• Bacteria

• Atom

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What caused the conflict between Robert Hooke and Isaac Newton?

• Disagreement over the nature of light

• Newton's book on gravity

• Hooke's claim about inspiring Newton's work

• Competition for a scientific award

Which scientist concluded that all plants are made of cells?

• Matthias Schleiden

• Robert Hooke

• Rudolph Virchow

• Theodor Schwann

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NGSS.MS-LS1-1

Who confirmed that all animals are composed of cells?

• Theodor Schwann

• Robert Remak

• Anton van Leeuwenhoek

• Matthias Schleiden

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NGSS.MS-LS1-1

What was the incorrect belief about cell formation that Schleiden initially had?

• Cells are a byproduct of plant growth

• Cells come from preexisting cells

• Cells can spontaneously generate from air

• Cells form through crystallization

Who corrected the misconception about cell generation by proving cells come from preexisting cells?

• Matthias Schleiden

• Rudolph Virchow

• Robert Remak

• Theodor Schwann

The Cell Theory:

1. 1. All living organisms are composed of one or more ​ (a)   . (Unicellular or Multicellular)

2. 2. All cells arise from ​ (b)   cells. (Not from Spontaneous Generation)

3. 3. Cells are the structural and functional unit of ​ (c)   . (Nothing living smaller than a Cell)

• cells
• preexisting
• life

Answer explanation

You can find the answer in your notes!!!

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112.34.c.4.A