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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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Term
Definition
Cell   The smallest functional and structural unit of all living organisms; usually consists of a nucleus, cytoplasm, and a membrane  
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Cell membrane    
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  A phospholipid layer that covers a cell’s surface; acts as a barrier between the inside of a cell and the cell’s environment  
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Organelle   One of the small bodies in a cell’s cytoplasm that are specialized to perform a specific function  
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Nucleus   In a eukaryote cell, a membrane-bound organelle that contains a cell’s DNA and that has a role in processes such as growth, metabolism, and reproduction  
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Prokaryote   An organism that consists of a single cell that does not have a nucleus  
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Eukaryote   An organism made up of cells that have a nucleus enclosed by a membrane; eukaryotes include animals, plants, and fungi, but not archaea or bacteria  
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Cell wall   A rigid structure that surrounds the cell membrane and provides support to the cell  
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Mitochondrion   In eukaryotic cell’s, the cell organelle that is surrounded by two membranes and that is the cite of cellular respiration  
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Lysome   A cell organelle that contains digestive enzymes  
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