Introduction to Cells

What is the smallest living things in all living organisms?

• Atoms
• Cells
• Organelles
• Muscles

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"BIO" means....

• the study of
• cells
• life
• atoms

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Approximately how many cells are inside a human being?

• Thousands
• Hundreds of thousands
• Billions
• Trillions

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Cell Theory states that...

• All living things have cells
• All living things have muscles
• Things which are alive can be made without cells
• All cells in a body come from a group of cells

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Cell Theory states that...

• All living things can die
• All living things have muscles
• The smallest living unit in an organism is a cell
• All humans have chloroplast

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Cell Theory states that...

• All living things can die
• All living things have muscles
• Things which are alive can be made without cells
• All cells come from other cells

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Plants are green because of the ________ within their cells.

• Nucleus
• Prokaryote
• Chloroplasts
• Photospores

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UNIcellular means....

• a single-cell organism
• a many-cell organism
• a triple cell organism
• Lots of cells in an organism

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MULTIcellular means....

• a single-cell organism
• a many-cell organism
• a triple cell organism
• Lots of cells in an organism

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TRUE/ FALSE Cell walls protect the cell

• TRUE
• FALSE