Cells and Cell Theory

Cell theory was first proposed in 1838. Evidence obtained through additional scientific investigations resulted in the current cell theory. Which statement describes a component of the original cell theory that was removed because of the new scientific knowledge?

•  All living things are made of cells.
• All cells come from other preexisting cells.
• Cells form through spontaneous generation.
•  Cells are the basic structural and functional units of life.
  

The combined observations of Mattias Schleiden, Theodor Schwann and Rudolph Virchow resulted in the formation of the cell theory. Which of the following is not part of the cell theory?

• All cells contain a nucleus. 
• All cells come from other living cells.
• All living organisms are made of one or more cells
•  Cells are the basic unit of structure and function of all living things.

Tags

NGSS.MS-LS1-1

There are some similarities between prokaryotic and eukaryotic cells. Which of the following structures is found in both prokaryotic and eukaryotic cells?

• lysosome
• mitochondrion
• nucleus
• ribosome

Tags

NGSS.MS-LS4-2

There are some similarities between prokaryotic and eukaryotic cells. Which of the following structures is found in both prokaryotic and eukaryotic cells?

• lysosome
• mitochondrion
• nucleus
• ribosome

Tags

NGSS.MS-LS4-2

Which of these best completes this concept map? 

• an animal cell
• a prokaryotic cell
• a virus
• a plant cell

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

The diagram below represents a cell. Which organelle is the site where amino acids are synthesized into proteins? 

• 1
• 2
• 3
• 4

Tags

NGSS.MS-LS1-2

The diagram below represents a cell of a green plant. Solar energy is used to produce energy-rich compounds in which structure? 

• A
• B
• C
• D

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

Which cell structure is correctly paired with its primary function? 

• ribosome-protein synthesis
• mitochondrion-movement
• vacuole-cell division
• nucelus-storage of nutrients

Which characteristic do most plants have in common?

• they are unicellular
• they are prokaryotic
• they produce seeds
• they are autotrophic

Tags

NGSS.MS-LS1-6

Which type(s) of cells have genetic material that is contained in a nucleus?

• bacteria
• only animal cells
• protists
• both plant and animal cells