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31 Cards in this Set
- Front
- Back
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Excretion |
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The removal of all the wastes produced by the cells of the body |
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Organic |
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Term used to describe molecules that contain both hydrogen and carbon |
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Amino Acids |
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any one of several building blocks of protein |
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Homeostasis |
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The ability of an organisms to maintain a stable internal environment even when the external environment changes |
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Receptor Molecule |
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Certain protein molecules in the cell membrane that can receive chemical messages from other cells |
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Cell |
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The basic unit of structure and function that makes up all organisms |
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Hormone |
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A chemical produced in the endocrine glands |
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Respiration |
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The process by which the chemical bond energy stored in nutrients is released for use in cells |
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Cell Membrane |
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The thin boundary between the cell and its environment |
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Immunity |
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The body's ability to destroy pathogens before they cause disease |
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Reproduction |
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The process by which organisms produce new organisms of the same type |
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Cell Respiration |
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The process in which nutrients are broken apart, releasing the chemical energy stored in them |
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Inorganic |
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A type of molecule that does not contain both carbon and hydrogen but can contain any other combination of elements |
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Ribosomes |
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One of the tiny structures in the cell that is the site of protein production |
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Chloroplast |
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The green organelle that contains chlorophyll; where photosynthesis takes place |
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Metabolism |
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All the chemical reactions that occur within the cells of an organism |
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Simple Sugars |
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The result of digested starches |
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Circulation |
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The flow of materials within a cell as well as between parts of a multicellular organism |
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Mitochondria |
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Pod-shaped organelles that contain enzymes used to extract energy from nutrients |
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Synthesis |
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A life process that involves combining simple substances in to more complex substances |
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Cytoplasm |
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The jellylike substance that is between the cell membrane and the nucleus and that contains specialized structures |
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Nucleus |
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A large structure within a cell that controls the cell's metabolism and stores genetic information, including chromosomes and DNA |
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Tissue |
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A group os specialized cells that perform a specific function |
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Digestion |
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The process that breaks down large food molecules into simpler molecules that the organism can use |
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Organ |
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A body structure made of different kinds of tissues combined to perform a specific function |
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Vacuole |
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Storage sacs within the cytoplasm of a cell that may contain either wastes or useful materials, such as food or water |
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Diffusion |
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The movement of molecules from areas of high concentration to areas of low concentration |
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Organ System |
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Several organs that work together to perform a major function in the body |
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Enzymes |
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Proteins that speed up the rate of chemical reactions in living things |
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Organelle |
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A structure within the cell that carries out a specific function |
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Active Transport |
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The process by which cells use energy to transport molecules through the cell membrane from areas of low concentration to areas of high concentration |