Flash Cards

science review

Term Definition
cell the smallest unit of life
multicellular organisms that are composed of more than one cells
unicellular organisms that are compose of one cell
homeostasis organism's ability to maintain the inside condition when outside condition change
species is a group of organism that have similar traits and are able to reproduce fertile offspring
genus is a group of similar species
binomial nomenclature give organism two-words specific name
dichotomous key is a series of descriptions arranged by pair that led the user to the identification of unknown organism.
cladogram is a branched diagram that shows relationship among organisms.
light microscope use light and lenses to enlarge an image of the object
compound microscope light microscope that uses more than one lens to magnify an object
electron microscope use magnetic field to focus a beam of electron through the object's surface
nucleus direct all the cell's activities and contain the genetic material
cell membrane the flexible covering that protect inside the cell from outside environment
cellwall the stiff structure that protect the cell from attacking of virus'sand bacteria
chloroplast is a bound-membrane organelles that use light energy to make food.
cytoplasm the fluid inside the cells that contain salts and other molecules
cytoskeleton the network of threadlike of protein
organelles tiny organs inside the cells that have its specific function
passive transport is the movement of molecules that don't need energy
diffusion is the movement of substance from the area of higher concentration to the area of lower concentration
osmosis is the movement of water molecules through the cell membrane
facilitated diffusion is when molecules pass through cell membrane using special proteins called transport protein
active transport is a diffusion that use energy
endocytosis is the process during a cell takes in the substance by surrounding in with the cell membrane
exocytosis is the process during which cell's vesicle release their sat_flash_1s outside the cell


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