Biology Chapter 4.2 Terms and Definitions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| plasma membrane | the outer boundary of the cell, called the cell membrane
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| cytoplasm | the region of the cell with the membrane that includes the fluid, the cytoplasm,and all of the organelles except the nucleus
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| cytosol | the solute portion of the cytoplasm, includes molecules and small particles
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| nucleus | the command center of the cell, controls all of the cells actions
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| prokaryote | microscopic single celled, doesn't have distinct cell membrane or organelle.
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| eukaryote | an organism consisting of cells that contain DNA and chromosomes, every living thing but archaebacteria and eubacteria
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| organelle | the small parts that form a cell: ex- cytoplasm, cell membrane, mitochondria
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| tissue | a group of similar cells that perform a similar function Example- muscle
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| organ | a group of similar tissues that perform a common function. Example- heart, liver, brain
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| organ system | A group of organs that perform a function, Example- digestive system
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