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Science

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
Animal Cell   A cell that is in animals  
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Plant Cell   A cell in all plants  
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Bacteria Cell   A cell that makes up a bacteria  
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Mitochondrion   spherical to rod-shaped organelles with a double membrane.  
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Ribosome   Pockets of Protein  
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Vesicle   Something holding liquid  
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Nucleus   spherical body containing many organelles, including the nucleolus  
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Chloroplast   Membrane-bound organelles that use light energy and make food.  
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Golgi Apparatus   a flattened, layered, sac-like organelle that looks like a stack of pancakes and is located near the nucleus  
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Cell Membrane   A flexible covering that protects the inside of a cell from the environment outside the shell.  
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Cell wall   A stiff structure the cell membrane that protects a cell from attack by viruses and other harmful organisms.  
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Cytoskeleton   A network of threadlike proteins joined together that gives a cell it's shape and helps it move.  
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Smooth Endoplasmic Reticulum   a vast system of interconnected, membranous, infolded and convoluted tubes that are located in the cell's cytoplasm  
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Rough Endoplasmic Reticulum   a vast system of interconnected, membranous, infolded and convoluted sacks that are located in the cell's cytoplasm  
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Lysosomes   (also called cell vesicles) round organelles surrounded by a membrane and containing digestive enzymes. This is where the digestion of cell nutrients takes place.  
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Centriole   A organelle near the nucleus in a animal cell  
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DNA   A substance that carries genetic information in the cells of plants and animals.  
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Flagellum   These are long, tail like things that move back and forth making the cell move.  
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Prokaryotic Cell   In this type of cell there is not a membrane.  
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Eukaryotic Cell   Plants, animals, fungi, protists are made of this.  
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Organelles   This is surrounded by membranes. Every Eukaryotic Cell has other structures and this is one of them. This one has special functions.  
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Multicellular   Having many cells  
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Nuclear Membrane   the membrane that surrounds the nucleus  
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Nuclear Envelope   This contains a lot of pores.  
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Nucleolus   A small structure in the nucleus of a cell  
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Unicellular   Having only one cell  
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Cell Theory   the theory that cells form the fundamental structural and functional units of all living organisms; proposed in 1838 by Matthias Schleiden and by Theodor Schwann  
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