7th Cell Vocabulary
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| Tissue | A group of cells that work together to perform the same function
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| Organ | A group of tissues that work together to perform the same function
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| Organ System | A group of organs that work together to preform the same function
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| Diffusion | The process of molecules moving from a space where there are a lot of those molecules to a space that does not have so many
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| Osmosis | The process of diffusion of water molecules through a selectively permeable membrane
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| Passive Transport | The process in which materials are moved through a cell membrane without using energy
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| Active Transport | The process in which materials are moved through a cell membrane using energy
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| Photosynthesis | The process by which a cell captures the energy in sunlight and uses it to make food
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| Respiration | The process in which cells break down simple food molecules such as glucose and release the energy they contain
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| Selectively Permeable | Describes material that some substances can pass through while others cannot
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| Stomata | Small openings on the undersides of leaves in which carbon dioxide enters
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| Sun | The main energy source for all living things
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| Glucose | A sugar that is a main source of energy for cells
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| DNA | The genetic material that carries information about an organism and is passed from parent to offspring
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| Cell Cycle | The regular sequence of growth and division that cells undergo
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| Chromatid | Each identical rod, or strand, of the chromosome
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| Interphase | The stage in which the cell grows to its mature size, makes a copy of its DNA, and prepares to divide into two cells
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| Mitosis | The stage in which the cytoplasm divides, distributing the organelles into each of the two new cells
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| Cytokinesis | The stage in which the cytoplasm divides, distributing the organelles into each of the two new cells
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| Replication | The process in which the cell makes a copy of the DNA in its nucleus
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| Meiosis | The process by which the number of chromosomes is reduced by half to form sex cells
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| Egg | The female sex cell
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| Sperm | The male sex cell
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| Zygote | A fertilized egg, produced by the joining of the sperm and the egg
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| Gamete | A sperm cell or an egg cell
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| Cell | The basic unit of structure and function in an organism
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| Development | The process of change to produce a more complex organism
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| Growth | The act of becoming larger
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| Homeostasis | The maintenance of the same body conditions no matter what the environmental conditions are
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| Organism | A living thing
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| Reproduce | To produce offspring
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| Response | A change in an organism behavior due to a reaction to the environment
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| Spontaneous Generation | The mistaken idea that living things come from nonliving things
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| Stimulus | A change in the environment that causes the organism to react
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| Unicellular | A single-celled organism
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| Multicellular | Organisms that are composed of many cells
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| Autotroph | Organisms that make their own food
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| Heterotroph | Organisms that cannot make their own food
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| Cell Theory | All living things are composed of cells. Cells are the basic unit of structure and function in living things. All cells are produced from other cells.
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| Eukaryotes | An organism with cells that contain a nucleus
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| Prokaryotes | An organism with cells that lack an nucleus
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| Microscope | An instrument that makes small objects look larger
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| Cell Membrane | A cell organelle that controls which substances can enter or leave the cell
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| Cell Wall | A rigid layer of nonliving material that surrounds the cells of plants
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| Chlorophyll | The green pigment in the chloroplasts
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| Chloroplast | The cell organelle that captures energy from sunlight and uses it to produce food for the cell
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| Cytoplasm | The region between the cell membrane and the nucleus that is a clear, thick, gel-like fluid
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| Endoplasmic Reticulum | A passageway that carries proteins and other materials from one part of the cell to another
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| Lysosome | A cell organelle that breaks down large food particles and old cell parts
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| Mitochondrion | A cell organelle that produces most of the energy the cell needs to carry out its functions
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| Nucleus | A cell organelle that controls the cell's activities
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| Ribosome | A cell organelle that makes proteins
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| Vacuole | A cell organelle that stores food, waste, and water for the cell
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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