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Celled Organisms

TermDefinition
single celled organisms unicellular; made up of only one cell
multicellular made up of more than one cell; plants and animals
cell smallest part of a living thing that can carry out all the processes of life
cell/plasma membrane (animals) cell wall (plants) surrounds (protects) cell with a flexible membrane: layered coat; maintains shape of cell; controls the transport of materials in and out of the cell wall: outer, rigid protective covering; helps plant stand up
cell nucleus large round structure inside the cell; command center of the cell (controls cell function)
microorganism any organism too small to see with your eye; must use a microscope
amoeba single celled organism; eats by surrounding a food particle and then bringing the food into the cell; moves by changing its shape
bacteria very large group of single celled organisms; much smaller than the cells that make up plants and animals
cilia hair like structures that helps move paramecium; also brings in food
cytoplasm the nucleus floats in this jelly like substance; maintains shape of cell
flagella thread like structures that whip around to move the tiny organisms such as euglena and volvox; also brings in food
organism a living thing
vacuoles storage bubbles inside the cytoplasm that hold food until it can be digested
chloroplast (plants); site of photosynthesis; type of plasid, a sac that contains pigments that are used to convert the sun's energy into food for the cell
organ a grouping of tissues into a distinct structure (animals or plants)that performs a specialized task
system group of parts that work together
tissue a group of similar cells and cell products forming a definite kind of structural material with a specific function, in a multicellular organism
reproduce make more organisms of their own kind
euglena single celled organism with a whiplike part that moves forward; use sunlight to make food
paramecium single celled organism has many hairlike structures to help it move and take in food
protist single celled organisms in a pond; behave like animals
Created by: crstone
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