Cell Level of Organization

Which instrument is credited for helping scientists develop cell theory?

•  the microscope

• a hand lens

• an electronic balance

• a thermometer

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Which statement is a part of the cell theory?

• all cells come from preexisting cells

• bacteria are prokaryotic cells

• eukaryotic cells are complex

• humans are multicellular

The first observation of cells by Robert Hooke was seen in cells that came from which type of organism?

• Cork

• Bacteria

• Oak leaf

• Fruit fly

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What is the smallest unit of life?

• Proton

• Cell

• Bacteria

• Electron

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What is a group of similar cells that perform a function?

• Cell

• Tissue

• Organ

• Organ System

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What type of cell has a nucleus?

• Virus

• Prokaryotic cell

• Karyotic cell

• Eukaryotic cell

What type of cell does NOT have a nucleus?

• Prokaryotic cell

• Karyotic cell

• Eukaryotic cell

• Plant cell

What are unspecialized animal cells that can become any type of cell in the body?

• Nerve cell

• Blood cell

• Transgenic cell

• Stem cell

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What is cell differentiation?

• A separate equation that some cells use for respiration

• The theory that there are different cell types within the body of living organisms

• When stem cells become a specific type of cell and obtains its function

• A special type of cell division

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The smallest level of organization of life in an organism

• tissue

• cell

• organ

• organ system

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