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Ch. 2 - Inside an Animal Cell

Key Ideas
• cells contain smaller parts called organelles
• each organelle has a specific job inside a cell
Vocabulary
cell membrane - a thin, protective covering that surrounds a cell
nucleus - the DNA-containing control center of a cell
cytoplasm - everything between the cell membrane & the nucleus
organelle - small structure that does a specific job in a cell
mitochondria - energy-supplying organelles
proteins - building blocks of cells
ribosomes - tiny organelles that make proteins
endoplasmic reticulum (ER) - an organelle that modifies new proteins
modified - changed
Golgi bodies - organelles that further modify & package proteins
cytoskeleton - a supporting structure inside a cell
energy - the ability to do work
Resources
Learning Master 10
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