Characteristics of Cells & Functions

What is the smallest structural and functional unit of living things?

• organ
• cell
• tissue
• atom

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NGSS.MS-LS1-1

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What did Robert Hooke build so he could see tiny objects?

• a microscope
• a telescope
• a spectrascope
• a camera

What did Hooke call the little boxes that cork is made of?

• crates
• boxes
• cells
• atoms

Why didn't Hooke think animals were made of cells?

• Hooke couldn't see animal cells.
• Animals do not have cells.
• Animal cells have cell walls
• Animal cells are too dry.

Where did Anton Van Leeuwenhoek find what he called animcules?

• in animal blood
• in bread dough
• in cells
• in pon scum

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NGSS.MS-LS1-1

What are the single-celled living things found in pond water called?

• blood
• proteins
• protists
• yeast

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What theory says that living things are made of cells?

• organic theory
• tissue theory
• structrual theory
• cell theory

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NGSS.MS-LS1-1

According to cell theory, what is the basic piece of all living things?

• organ
• tissue
• blood
• cell

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According to cell theory, where do all cells come from?

• water
• air
• cells
• food

What is one cell that is big enough to be seen without a microscope?

• a chicken egg yolk
• a cork bark cell
• a blood cel
• a bacteria cell