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GenBio cells ch 2

cell structure and function for beginners

TermDefinition
Cell membrane protective phospholipid bilayer- controls what enters and exits the cell
semipermeable membrane a membrane that only allows some things to enter or exit.
cytoplasm the liquid interior of the cell
organelles the parts that make up the cell
cell wall tough outer protective layer in plants and some bacteria but NOT in animals
nucleus the control center of the cell. DNA is housed here
chloroplasts take sunlight and transform it into food. these are found in plant cells
mitochondria the powerhouse of the cell. These break down food to make energy for plants and animals by cellular respiration
ribosomes synthesize proteins
proteins do the work for the cell
rough endoplasmic reticulum synthesizes lipids and proteins and sends them to the golgi
golgi modifies lipids and proteins and ships them out of the cell
lysosome clean up the cell- gets rid of old or dead organelles
tissue many cells working together
cell the smallest unit of life
organ many tissues working together
organ system many organs working together
organism an individual living thing
prokaryote cells without a nucleus and without membrane bound organelles
eukaryote cells with a nucleus that contain membrane bound organelles
examples of prokaryotes bacteria
examples of eukaryotes plants, animals, fungus and protists
Created by: ruth.baker