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31 Cards in this Set

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  • Back
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Excretion
.



The removal of all the wastes produced by the cells of the body
.




Organic
.



Term used to describe molecules that contain both hydrogen and carbon
.




Amino Acids
.



any one of several building blocks of protein
.




Homeostasis
.



The ability of an organisms to maintain a stable internal environment even when the external environment changes
.




Receptor Molecule
.



Certain protein molecules in the cell membrane that can receive chemical messages from other cells
.




Cell
.



The basic unit of structure and function that makes up all organisms
.




Hormone
.



A chemical produced in the endocrine glands
.




Respiration
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The process by which the chemical bond energy stored in nutrients is released for use in cells
.




Cell Membrane
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The thin boundary between the cell and its environment
.




Immunity
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The body's ability to destroy pathogens before they cause disease
.




Reproduction
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The process by which organisms produce new organisms of the same type
.




Cell Respiration
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The process in which nutrients are broken apart, releasing the chemical energy stored in them
.




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
.




Ribosomes
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One of the tiny structures in the cell that is the site of protein production
.




Chloroplast
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The green organelle that contains chlorophyll; where photosynthesis takes place
.




Metabolism
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All the chemical reactions that occur within the cells of an organism
.




Simple Sugars
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The result of digested starches
.




Circulation
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The flow of materials within a cell as well as between parts of a multicellular organism
.




Mitochondria
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Pod-shaped organelles that contain enzymes used to extract energy from nutrients
.




Synthesis
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A life process that involves combining simple substances in to more complex substances
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Cytoplasm
.



The jellylike substance that is between the cell membrane and the nucleus and that contains specialized structures
.




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
.




Tissue
.



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
.




Organ
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A body structure made of different kinds of tissues combined to perform a specific function
.




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
.




Diffusion
.



The movement of molecules from areas of high concentration to areas of low concentration
.




Organ System
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Several organs that work together to perform a major function in the body
.




Enzymes
.



Proteins that speed up the rate of chemical reactions in living things
.




Organelle
.



A structure within the cell that carries out a specific function
.




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