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12 Cards in this Set
- Front
- Back
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surface area-to-volume ratio
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as a cell grows, its volume increases much faster than its surface area does, if a cell were to become very large, the volume would increase much more than the surface area,therefore the surface area would not allow materials to enter or leave the cell quickly enough to meet the cells needs
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plasma membrane(cell membrane)
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a cell's outer boundary, covers the cell's surface and acts as a barrier between the inside and outside of a cell
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cytoplasm
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the region of the cell that is within the plasma membrane and that includes the fluid, cytoskeleton, and all of the organelles cept the nucleus
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cytosol
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the part of the cytoplasm that includes molecules and small particles, such as ribosomes, but no membrane-bound organelles
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nucleus
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a membrane bound organelle that contains a cell's DNA, controls most of a eukaryotic cell's functions
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prokaryotes
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organisms that lack a membrane-bound nucleus and membrane-bound organelles
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nucleoid
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a part of a prokaryotic cell where the cell's genetic information (DNA) is concentrated, but not covered by a membrane
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eukaryotes
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organisms made up of one or more cells that have a nucleus and membrane-bound organelles
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organelles
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intracellular bodies that perform specific functions for the cell
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tissue
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a group of similar cells and their products that carry out a specific function
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organs
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groups of tissues that perform a particular job in an organism
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organ system
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a group of organs that accomplish related tasks
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