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Liv Envir Topic 1
Stack #20697
| Question | Answer |
|---|---|
| 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 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 chlorophyll; where photosynthesis takes place |
| Circulation | the flow of materials within a cell as well as between parts of a multicellular organism |
| Cytoplasm | the jellylike substances that is between the cell membrane and the nucleus and that hold the specialized structures |
| Diffusion | the movement of molecules from areas of high concentration to areas of low concentration |
| concentration | the process that breaks down large food molecules into simpler molecules that the organisms can use |
| Enzymes | proteins that speed up the rate of chemical reactions in living things |
| Excretion | the removal of all the wastes 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 |
| Lipid | any one of a group of organic compounds that includes oils, fats, and waxes |
| Metabolism | all the chemical reactions that occur 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 tissue combined to perform a specific function |
| 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 carbo |
| Receptor Molecule | certain protein molecules in the cell membrane that can receive chemical messages from other cells |
| Respiration | the process by which the chemical bond energy stored in nutrients is released for use in cells |
| Reproduction | the process by which organisms produce new organisms of the same typ |
| Ribosome | one of the tiny structures in the cell that is the site of protein production |
| Simple Sugars | the result of digested starches |
| 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 |
Created by:
scottp
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