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Cells & Functions

TermDefinition
cell "little rooms", or the basic unit of living things
tissue a group of similar cells that work together to perform a specific job in the body
organ a combination of two or more tissues that work together to perform a specific function in the body
organ system a group of organs that works together to perform body functions
organism anything that can live on it's own
population a group of individuals of the same species that live together in the same area at the same time
community all of the populations of different species that live and interact in an area
ecosystem a community of organisms and their nonliving (abiotic) envirinment
unicellular made of a single cell
multicellular made of many cells
cell membrane a phospholipid layer that covers a cell's surface and acts as a barrier between the inside of a cell and a cell's environment
organelles a structure within a cell, sometimes surrounded by a membrane
cytoplasm cellular fluid surrounding a cell's organelles
nucleus the membrane covered organelle found in eukaryotic cells, contains the cells DNA, serves as the control center for the cell
prokaryotic a cell that does not have a nucleus or any other membrane covered organelles; bacteria
eukaryotic a cell that contains a central nucleus and a complicated internal structure
bacteria extremely small single-celled organisms without a nucleus, prokaryotic cells
cell wall a structure that surrounds the cell membrane of some cells, and provides strength and support to the cell membrane
ribosome a small organelle in cells where proteins are made from amino acids
endoplasmic reticulum a membrane covered organelle that produces lipids, breaks down drugs, and other substances, packages proteins for delivery out of the cell
mitochondria cell organelles surrounded by 2 membranes that break down food molecules to make ATP or energy
nucleolus a dark spot in the nucleus that stores the materials to make ribosomes in the cytoplasm
Golgi complex the cell organelle that modifies, packages, and transports materials out of the cell
chloroplast an organelle found in plant and algae cells where photosynthesis occurs
vesicle a membrane covered compartment in a eukaryotic cell that forms when part of the cell membrane surrounds an object and pinches off
vacuole a large membrane covered structure found in plants that serves as a storage container for water and other liquids
lysosome special vesicals in animal cells that contain enzymes to break down worn out organelles
Created by: pdobias