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20 Cards in this Set
- Front
- Back
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cell membrane
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surrounds each cell
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selectively permeable
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certain molecules can pass through membrane and others cannot
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passive transport
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movement through membrane without use of cell's own energy
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diffusion
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movement of molecules from place of high concentration to lower concentration
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osmosis
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diffusion of water through selectively permeable membrane
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active transport
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requires cells to use its own energy to move substances through membrane
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organelles
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parts of a cell that perform many functions needed to keep cell alive
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mitochondria
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cell's powerhouse
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endoplasmic reticulum
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maze of passageways/canals that form the cell's delivery system
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ribosomes
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tiny organelles that direct assembling of proteins
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Golgi apparatus
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collects chemicals from cytoplasm
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vacuoles
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organelles that look like bubbles and serve as containers inside cytoplasm
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lysosomes
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tiny enzyme-filled capsules inside most cells; the demolition crew
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chloroplasts
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contain green pigment chlorophyll
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cilia
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short and many hairlike structures on outside of cell
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flagella
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longer and few (one or two) hairlike structures on outside of cell
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nucleus
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control center of the cell
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chromosomes
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the plans for all machines in cell factory
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pathologist
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medical doctor who examines human tissues, blood, and other body fluids for diagnosis purposes
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cell wall
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structure that plant cells have and animals do not
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