The cell theory review

Match the cell theory contributor with their correct invention/discovery

• Theodor Schwann

• Discovered red blood cells and bacteria

• Antoni van Leeuwenhoek

• Discovered that all animals are made of cells

• Robert Hooke

• Discovered cells and coined the term "cell"

• Matthias Schleiden

• Discovered that all plants are made of cells

• Hans and Zacharias Janssen

• Invented the first compound microscope

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NGSS.MS-LS1-1

What are the three components of classical cell theory? (Pick 3)

• Cells are the basic unit of life

• All cells essentially have the same chemical composition

• All organisms are composed of one or more cells

• All cells come from pre-existing cells

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NGSS.MS-LS1-1

Match the following

• If I fall, I will get hurt.

• Hypothesis

• Matter is composed of atoms, which combi

• Theory

• KE = 1/2 mv²

• Law

What are necessary parts of a scientific theory?

• may be an opinion or guess

  
  

• supported by scientific facts and evidence

  
  

• represented with mathematical equations

  
  

• repeated testing yielding the same results

  
  

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NGSS.MS-LS1-5

All ​ (a)   things are made of cells. All cells are the ​ (b)   units of living things. All cells come from ​ (c)   .

• living
• basic
• other cells

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NGSS.MS-LS1-1

The human body is organized in a hierarchical arrangement, as shown below. What structure is represented by the third image from the left in the above series?

• Cell

• Organ

• Organism

• Organ system

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NGSS.MS-LS1-3

The diagram shows the different size of vacuoles between a plant cell and an animal cell.

Why is the vacuole in a plant cell larger than a vacuole in an animal cell?

• The vacuole in the plant cell produces ribosomes.

   

• The vacuole in the plant cell controls cellular activities.

• The vacuole in the plant cell performs photosynthesis.

   

• The vacuole in the plant cell maintains water balance .

   

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NGSS.MS-LS1-2

Two types of models that can be used to show details of the structures of cells are shown below.

Which of the following describes a limitation of the drawing but NOT the clay model?

• It does not represent the main parts of a cell. B.

• It does not contain the correct number of nuclei

• It cannot represent a living cell, since a true cell is three-dimensional

• It cannot represent a living cell, since the cytoplasm should be in constant motion

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NGSS.MS-LS1-2

5.  The cell theory was developed over a period of 200 years and resulted from combining the work of multiple scientists.  What makes scientific knowledge durable or long-lasting?

 

• A. It will always be expressed under the same conditions.

   

• B. It is well supported but can change when new evidence arises.

   

• C. It can be expressed as a statement or as a mathematical equation.

   

• D. It is something familiar that helps scientists understand anything not familiar.

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NGSS.HS-LS4-1

 

34.  Stopping at a red light is a societal law that all drivers must follow. Scientific laws are different from societal laws. Which of the following statements is true of a scientific law?

 

 

• A. A scientific law describes a well-supported explanation of the natural world.

   

• B. A scientific law describes information from a government or university source.

   

• C. A scientific law describes a principle that always occurs under the same conditions.

   

• D. A scientific law describes something that is too large, too small, or too difficult to study.