Cell Theory

An Amoeba is a unicellular, animal-like protist that lives in ponds and streams. According to cell theory, where did this cell come from?

• another pre-existing amoeba cell.
• energy from sun that allowed the protist to reproduce.
• a multicellular organism.
• the nonliving environment.

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What tool do you use to view the cells?

• metric ruler
• centrifuge
• microscope
• telescope

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Which of the following is NOT a cell theory.

• All non-living things are made of cells
• All cells come from pre-existing cells
• Cells are the basic unit of structure and function of all living things

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All living things are made up of...

• cells
• cell tissues
• organ
• organ systems

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All cells come from___________ cells.

• pregnant
• pre-existing
• paternal
• pin size

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Rocks are not living because

• they never move
• they aren't needed for humans
• they are not made of cells
• they don't break down

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What is the basic structural and functional unit of all living things? 

• atom
• cell
• molecule
• human

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A plant and an animal are both living things. According to the Cell Theory, what can you conclude about these two very different organisms?

• Plants have cells but animals do not.
• They are both made of one or more cells. 
• They both come from the same kind of cell.
• They both come from a non-living organism.

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Cell theory states:

• All living cells must have a cell wall.
•  All living cells require glucose for survival.
• The basic unit of life is a cell.
• All cells contain a nucleus

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 Which of the following is NOT one of the main components of the cell theory?

• cells must contain DNA
• all living things are made of cells
• cells can only come from other cells
• cells are the basic unit of life