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Biology

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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Question
Answer
Bacteria   A member of a large group of unicellular microorganisms that have cell walls but lack organelles and an organized nucleus, including some that can cause disease.  
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Cell   The smallest structural and functional unit of an organism.  
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Bacteriophage   A virus that parasitizes a bacterium by infecting it and reproducing inside it.  
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Chloroplast   A plastid that contains chlorophyll and in which photosynthesis takes place.  
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Cell Membrane   The semipermeable membrane surrounding the cytoplasm of a cell.  
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Nucleus   A dense organelle present in most eukaryotic cells, typically a single rounded structure bounded by a double membrane, containing the genetic material.  
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DNA   The fundamental and distinctive characteristics or qualities of someone or something.  
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Plasmid   A genetic structure in a cell that can replicate independently of the chromosomes, typically a small circular DNA strand in the cytoplasm of a bacterium.  
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Cell Wall   A rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria.  
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Capsule   A very large structure of some prokaryotic cells, such as bacterial cells.  
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