Introduction to Cells

Which statement was NOT included in cell theory?

• All living things are composed of cells.

• Living cells come only from other living cells.

• Each cell contains a cell membrane, cytoplasm, nucleus, mitochondria, and endoplasmic reticulum.

• Cells are the smallest structure of living things that can perform the functions necessary for life.

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Robert Hooke, Anton van Leeuwenhoek, Theodor Schwann, Rudolf Virchow, and Matthias Schliden were all responsible for what theory?

• The Theory of Gravity

• The Theory of Relativity

• The Cell Theory

• The Theory of Continental Drift

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All living things are made up of...

• cells

• tissues

• organ

• organ systems

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

• atom

• cell

• bacteria

• animalcules

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All cells -----

• come from other dead cells

• come from other living cells

• crystallize out of the air

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The heart is an example of a(n)

• organ

• tissue

• organ system

• cell

What is an organ system?

• an individual living thing such as a plant, bacterium, animal, or fungi.

• a group of organs that work together to perform one or more functions.

• a group of tissues that perform a specific function or group of functions.

• groups of cells that have a similar structure and act together to perform a specific function.

• the smallest structural and functioning unit of an organism.

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What is an organ?

• an individual living thing such as a plant, bacterium, animal, or fungi.

• a group of organs that work together to perform one or more functions.

• a group of tissues that perform a specific function or group of functions.

• groups of cells that have a similar structure and act together to perform a specific function.

• the smallest structural and functioning unit of an organism.

An organ is made up of many...

• tissues

• organ systems

• organisms

• hearts and lungs

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A group of similar cells working together makes a(n)

• organ system

• tissue

• organism

• molecule

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