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| Smalles unit of an elemnet composed of electrons, protons, and nuetrons. |
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| Union of two or more atoms of the same or different elements. |
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| The structural and functional unit of all living things. |
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| A group of cells with a common structure and function. |
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| Composed of tissue functioning together for a specific task. |
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| Outer suface that regulates entrance and exit of molecules. |
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| Maintains cell shape and assists movement of cell parts. |
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| Cylinders of protein molecules present in cytoplasm, centrioles, cilia, and flagella. |
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| Protein fibers that provide support and strength. |
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| Protein fibers that play a role in movement of cells and organelles. |
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| Short cylinders of microtubules of unknown function. |
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| Microtubule organzing center that contains a pair of centrioles. |
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Vesicle that digests macromolecules and even cell parts.
Contains digestive enzymes that break dwon cell parts or substances entering by vesicles. |
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| Membrane-bounded sac that stores and transports substances. |
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| Semifluid matrix outside nucleus that contains organelles. |
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| Double membrane with nuclear pores that encloses nucleus. |
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| Diffuse threads containing DNA and protein. |
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| Region that produces subunits of ribosomes. |
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| Rough ER (Endoplasmic Reticulum) |
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Definition
Studded with ribosomes, processes proteins.
Synthesizes proteins and packages them in vesicles. |
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| Smooth ER (Endoplasmic Reticulum) |
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Definition
| Lacks ribosomes, synthesizes lipid molecules. Synthesizes lipids and has various other functions. |
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| Particles that carry out protein synthesis. |
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| Organelle that carries out cellular respiration, producing ATP molecules. |
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| String of ribosomes stimutaneously synthesizing same protein. |
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Processes, packages, and secretes modified cell products.
Modifies lipids and proteins from the ER; sorts and packages them in vesicles. |
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| A molecule is moving from lower to higher concentraion. For example, iodine collects in the cells of the thyroid gland. |
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| Takes lipis / proteins to Golgi apparatus. |
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| An anaerobic process, meaning that it does not require oxygen. |
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| Releases chemicals after an injury or infection. |
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| Fills spaces between cells and fibers. |
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| Divides and produce other types of cells. |
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| Produces fibers and ground substance. |
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| Branched, thin, forms network. |
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| Produces antibodies and engulfs pathogens. |
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| Unbranched, strong but flexible. |
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| Connect muscles to bones. |
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| Connect bones to other bones. |
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*Has striated cells with multiple nuclei.
*Occurs in muscles attached to skeleton.
*Functions in voluntary movement of body. |
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Definition
*Has spindle-shaped cells, each with a single nucleus.
*Cells have no striations.
*Functions in movement of substances in lumens of body.
*Is involuntary.
*Is found in blood vessel walls and walls of the digestive tract. |
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Definition
*Has branching, striated cells, each with a single nucleus.
*Occurs in the wall of the heart.
*Functions in the pumping of blood.
*Is involuntary. |
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| Located in nervous tussue, are cells that outnumber neurons nine to one and take up more than half the volume of the brain. |
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*Lining of lungs, blood vessels.
*Protects. |
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*Lining of kidney tubules, various glands.
*Absorbs molecules. |
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