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REVIEW B6
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How many times bigger is a millimiter then a micrometer?
1 thousand times bigger
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1 nanometer is the same as how many millimeters?
0.000001 millimeter
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What do we call the organisms that have only one cell and no nucleus?
Prokaryotes
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What do we call organisms whose cells have a nucleus and organelles limited by a membrane?
Eukaryotes
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Do all cells have a nucleus?
No, they don't
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How many times bigger is a millimiter then a nanometer?
1 million times bigger
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What is the cell wall composed of?
Cellulose
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How big is a red blood cell? (in micrometers or millimeters)
7 micrometers / 0.007 millimeters
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0.5 millimeters is the same as how many micrometers?
500 micrometers
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What is the main example of a living thing that has only one cell?
Bacteria
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What is special about chlorophyll?
It causes photosynthesis
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What is a cell?
The most basic unit of any living thing
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What are the two main differences between a plant cell and an animal cell?
A plant cell has a cell wall and an organelle called chloroplast
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What kind of pigment choroplasts contain?
Chlorophyll
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1 micrometer is the same as how many millimeters?
0.001 millimeter
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What is the function of the cell wall?
It is rigid and gives the plant skeletal support since plants do not have a skeleton
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