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74 Cards in this Set
- Front
- Back
what are all living things made of?
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Cells
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what is the smallest unit that can preform the basic activities of life?
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the cells
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The studies of whom proved that cells divide, hence the evidence that life comes from life?
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Robert Hooke, and Antone Van Leeuwenhoek
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what theory is based on the observation and data collected in these studies?
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the cell theory
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cells have a great diversity of what?
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shapes and sizes
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cells are what?
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unicellular
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the single cell of an unicellular organism does what?
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all that is necessary for the organism to survive
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organisms made up of many cells are called?
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multi-cellular
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a multi-cellular organism is a?
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community of specialized cells. Different types of cells in an organism preform different functions
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cells are separated into different categories based on what?
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the location of the genetic material
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cells are what?
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unicellular
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the single cell of an unicellular organism does what?
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all that is necessary for the organism to survive
|
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organisms made up of many cells are called?
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multi-cellular
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a multi-cellular organism is a?
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community of specialized cells. Different types of cells in an organism preform different functions
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cells are separated into different categories based on what?
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the location of the genetic material
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what are the two different categories that classify cells?
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prokaryotic and eukaryotic
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prokaryotic cells are?
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cells that have no organelles and the genetic material is the cytoplasm
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eukaryotic cells are?
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cells that have membrane-enclosed organelles and the genetic material is a structure called the nucleus
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what do cells do?
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they carry out the functions needed to support life
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what is the hierarchy of multi-cellular cellular organization?
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cell, tissue, organ, organism
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what led to the discovery of cells?
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microscope
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what are cells measured in?
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micrometers- um, a micrometer is one millionth of a meters
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what do microscopes do?
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they magnify objects and make them appear larger, up to 1000x larger
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what did Robert Hooke observe?
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tree bark, dead cells
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what did Antone Van Leeuwenhoek observe?
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moving (living things) in pond water
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how do light microscopes work?
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the lenses are used to bend light; sometimes cell samples treated with dye to make structures in the cells easier to see
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what is the advantage of the light microscope?
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can observe living cells, used for objects larger than .2 ums
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how does the scanning electron microscope work?
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electrons are used to produce images. The object is coated with a heavy metal, then a beam of electrons run back and forth over the surface; a 3-D image is produced
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how does the transmission electron microscope work?
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electrons pass through a thinly sliced section of a cell producing a 2-D image
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what is a disadvantage for the TEM and the SEM?
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the cannot be used for studying live specimens
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how do light microscopes work?
|
the lenses are used to bend light; sometimes cell samples treated with dye to make structures in the cells easier to see
|
|
what is the advantage of the light microscope?
|
can observe living cells, used for objects larger than .2 ums
|
|
how does the scanning electron microscope work?
|
electrons are used to produce images. The object is coated with a heavy metal, then a beam of electrons run back and forth over the surface; a 3-D image is produced
|
|
how does the transmission electron microscope work?
|
electrons pass through a thinly sliced section of a cell producing a 2-D image
|
|
what is a disadvantage for the TEM and the SEM?
|
the cannot be used for studying live specimens
|
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what are some organelles that process information?
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nucleus, ribsomes
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what are organelles that provide energy?
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chloroplast, mighty mitochondria
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what are organelles that provide transport?
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endoplasmic reticulum, ribsome, ER, vesicles, Golgi apparatus
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what are organelles for storage, recycling, and waste?
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vacuoles, lysomes
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what are some organelles that process information?
|
nucleus, ribsomes
|
|
what are organelles that provide energy?
|
chloroplast, mighty mitochondria
|
|
what are organelles that provide transport?
|
endoplasmic reticulum, ribsome, ER, vesicles, Golgi apparatus
|
|
what are organelles for storage, recycling, and waste?
|
vacuoles, lysomes
|
|
what are some organelles that process information?
|
nucleus, ribsomes
|
|
what are organelles that provide energy?
|
chloroplast, mighty mitochondria
|
|
what are organelles that provide transport?
|
endoplasmic reticulum, ribsome, ER, vesicles, Golgi apparatus
|
|
what are organelles for storage, recycling, and waste?
|
vacuoles, lysomes
|
|
what are some organelles that process information?
|
nucleus, ribsomes
|
|
what are organelles that provide energy?
|
chloroplast, mighty mitochondria
|
|
what are organelles that provide transport?
|
endoplasmic reticulum, ribsome, ER, vesicles, Golgi apparatus
|
|
what are organelles for storage, recycling, and waste?
|
vacuoles, lysomes
|
|
what are some organelles that process information?
|
nucleus, ribsomes
|
|
what are organelles that provide energy?
|
chloroplast, mighty mitochondria
|
|
what are organelles that provide transport?
|
endoplasmic reticulum, ribsome, ER, vesicles, Golgi apparatus
|
|
what are organelles for storage, recycling, and waste?
|
vacuoles, lysomes
|
|
what are some organelles that process information?
|
nucleus, ribsomes
|
|
what are organelles that provide energy?
|
chloroplast, mighty mitochondria
|
|
what are organelles that provide transport?
|
endoplasmic reticulum, ribsome, ER, vesicles, Golgi apparatus
|
|
what are organelles for storage, recycling, and waste?
|
vacuoles, lysomes
|
|
how do light microscopes work?
|
the lenses are used to bend light; sometimes cell samples treated with dye to make structures in the cells easier to see
|
|
what is the advantage of the light microscope?
|
can observe living cells, used for objects larger than .2 ums
|
|
how does the scanning electron microscope work?
|
electrons are used to produce images. The object is coated with a heavy metal, then a beam of electrons run back and forth over the surface; a 3-D image is produced
|
|
how does the transmission electron microscope work?
|
electrons pass through a thinly sliced section of a cell producing a 2-D image
|
|
what is a disadvantage for the TEM and the SEM?
|
the cannot be used for studying live specimens
|
|
what led to the discovery of cells?
|
microscope
|
|
what are cells measured in?
|
micrometers- um, a micrometer is one millionth of a meters
|
|
what do microscopes do?
|
they magnify objects and make them appear larger, up to 1000x larger
|
|
what did Robert Hooke observe?
|
tree bark, dead cells
|
|
what did Antone Van Leeuwenhoek observe?
|
moving (living things) in pond water
|
|
what are the two different categories that classify cells?
|
prokaryotic and eukaryotic
|
|
prokaryotic cells are?
|
cells that have no organelles and the genetic material is the cytoplasm
|
|
eukaryotic cells are?
|
cells that have membrane-enclosed organelles and the genetic material is a structure called the nucleus
|
|
what do cells do?
|
they carry out the functions needed to support life
|
|
what is the hierarchy of multi-cellular cellular organization?
|
cell, tissue, organ, organism
|