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Cells and Organelles

Biology Midterm Vocabulary

WordDefinition
cell the basic unit of life
multicellular made of multiple cells
unicellular made of a single cell
metabolism the ability to break down and use energy
homeostasis a cell's ability to maintain a stable internal condition
reproduction mating, creation of a new generation, offspring, sex
heredity traits passed down through reproduction
cell theory principle that states that all organisms are made of one or more cells and that all cells come from living material
cell membrane the outer layer of an animal cell made of lipids, controls what enters and leaves the cell
cytoplasm the inner filling part of a cell, holds the organelles in place
ribosome an organelle in which proteins are made, sometimes attached to the ER
nucleus the control center of the cell
organelle the cell's "organs"
endoplasmic reticulum internal membrane compartments which "transport" materials the cell produces and receives
vacuole the storage center of a cell
golgi apparatus a cell organelle in Eukaryotes which packages and sends along materials within the cell
nuclear membrane double membrane surrounding the nucleus, controls what leaves and enters the nucleus
mitochondrion cell organelles which produce ATP energy through oxidative respiration
chloroplast organelle found only in plant cells and produces energy through photosynthesis
lysosome an organelle which uses digestive enzymes to break down waste
microtubule hollow protein fiber involved in cell structure and movement
cytoskeleton protein filaments involved in a cell's shape, structure, and movement
centriole rod shaped organelle, helps in cell division
Created by: QueChaT
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