Shared Flashcard Set

Details

Review for little Science quiz
words and things to know... i think
24
History
7th Grade
09/28/2009

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Cards

Term
no nucleus or organelles
Definition
prokaryotic


Ex: bacteria
Term
contain a nucleus and organelles
Definition
Eukaryotic



Ex: Plant and animal cells
Term
what did robert hooke do?
Definition
looked at cork and called teh small structures inside the cork-cells.
Term
what did anton van leeuwenhoek do?
Definition
developed the first microscope allowing hooke to see the cells
Term
what are made up of cells
Definition
all living things
Term
what are cells
Definition
basic unit of structure and function in all living organisms
Term
where do cells come from
Definition
already existing cells
Term
basic unit of life
Definition
define cells
Term
similar cells working together
Definition
define tissues
Term
a group of tissues working together
Definition
define organ
Term
example of tissue?
Definition
blood, muscles, bones
Term
organ systems functioning to keep organism alive
Definition
define organism
Term
roots, stems, and leaves help keep plants alive
Definition
ex of organism?
Term
cell membrane
Definition
"gate keeper" outer boundary of cell; controls what get in and out of the cell
Term
cell wall
Definition
found in plants only! tough, rigid boundary gives cell shape and support
Term
cytoplasm
Definition
"cell fluid" Gel like fluid inside cell; where many chemical reactions occur
Term
nucleus
Definition
the nucleus is the command center of the cell. it regulates all activities in the cell.
contains dna- the hereditary information of the cell
Term
chloroplasts
Definition
Plants only! site where photosynthesis occurs; changes light energy (sun) into chemical energy (glucose)
Term
mitochondria
Definition
"powerhouse"
converts glucose into energy used by the cell
Term
ribosomes
Definition
"protein factories"
Place where protein is made
Term
endoplasmic reticulum
Definition
"conveyor belt"
Transports proteins throughout the cell
Term
golgi bodies
Definition
package and secrete substances (proteins) throughout the cell
Term
vacuoles
Definition
store food, H2O, and waste in cells.
Largest in plant cells
Term
Lysosomes
Definition
Contain chemicals that digest wastes and worn out cell parts
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