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Biology Topic 1vocab
| Term | Definition |
|---|---|
| Active Transport | The process by which cells use energy to transport molecules through the cell membrane from areas of low concentration to areas of high concentration |
| Amino Acids | any one of the several building blocks of protein |
| Cell | The basic unit of structure and function that makes up all organisms |
| Cell Membrane | the thin boundary between the cell and its environment |
| Cell respiration | the process in which nutrients are broken apart, releasing the chemical energy stored in them |
| Chloroplast | the green organelle that contains chlophyll; where photosynthesis takes place |
| Circulation | The flow of materials within a cell a well as between parts of a multicellular |
| Cytoplasm | the jellylike substance that is between the cell membrane and the nucleus and that contains specialized structure |
| Diffusion | the movement of molecules from areas of high concentration to areas of low concentration |
| Enzymes | proteins that speed up the rate of chemicals reactions in living things |
| Excretion | the removal of all waste produced by the cells of the body |
| Homeostasis | the ability of an organism to maintain a stable internal environment even when the external environment changes |
| Hormone | A chemical produced in the endocrine glands |
| Immunity | the body's ability to destroy pathogens before they cause disease |
| Inorganic | a type of molecule that does not contain both carbon and hydrogen but can contain any other combination of elements |
| Metabolism | all the chemical reactions that occurs within the cells of an organism |
| Mitochondria | Pod-shaped organelles that contain enzymes used to extract energy from nutrients |
| Nucleus | a large structure within a cell that controls the cell's metabolism and stores genetic information, including chromosomes and DNA |
| Organ | A body structure made of different kinds of tissues combined to performed a specific function in the body |
| Organ system | several organs that work together to perform a major function in the body |
| Organelle | a structure within the cell that carries out a specific function |
| Organic | term used to describe molecules that contain both hydrogen and carbon |
| Receptor Molecule | certain proteins molecules in the cell membrane that can receive chemical messages from other cells |
| Reproduction | The process by which organisms produce new organism of the same type |
| Respiration | the process by which the chemical bond energy stored in nutrients is released for use in cells |
| Ribosome | One of the tiny structures in the cell that is the site of protein production |
| Simple Sugars | the result of the digestion of the Glucose is a simple sugar |
| synthesis | a life process that involves combining simple substances into more complex substances |
| Tissue | a group of specialized cells that perform a specific function |
| Vacuole | storage sacs within the cytoplasm of a cell that may contain either wastes or useful materials such as water or food |
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