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| 3 regions of an organized cell |
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Definition
| plasma membrane, cytoplasm and nucleus |
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Term
| functions of the plasma membrane |
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Definition
| Interacts with the extracellular environment; detects signaling molecules; transmits signals from outside to inside; binds cell to other cells |
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Definition
| within the plasma membrane; contains cellular organelles |
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| Major components of the plasma membrane |
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Definition
| Lipid bilayer, integral proteins, peripheral proteins, yellow filaments and yellow clusters |
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Term
| receptor-mediated endocytosis |
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Definition
| materials brought into the cell are selected by protein receptors on the cell plasma membrane |
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Definition
| process of engulfing solid particles by the cell membrane. Can be used to destroy bacteria or clean up damaged tissue |
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Definition
| provides the energy (in the form of ATP) for the active processes carried out by a cell |
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Definition
| forms an interconnected network of tubules, vesicles, and cisternae within cells |
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Definition
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Definition
| synthesizes lipids and steroids, drug detoxification |
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| process and package macromolecules, such as proteins and lipids, after their synthesis and before they make their way to their destination |
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Definition
| a double lipid bilayer that encloses the genetic material in eukaryotic cells |
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Definition
| large protein complex that crosses the nuclear envelope and allows the transport of water-soluble molecules across the nuclear envelope |
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Definition
| network of fibers found throughout the inside of a cell nucleus |
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Definition
| non-membrane bound structure composed of proteins and nucleic acids found within the nucleus |
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Definition
| transcribed from a DNA template, and carries coding information to ribosomes for protein synthesis |
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Definition
| read the info in mRNA and use it to make proteins from amino acids |
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Term
| the 3 major structural elements of the cytoskeleton |
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Definition
| microtubules, microfilaments and intermediate filaments |
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Term
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Definition
| Globular proteins strung together to form a helix; used in movement and transport |
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Definition
| give the cell structure; "the bones of the cell" |
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Definition
“orient” cells and also create “tracks” upon which organelles attach and move throughout the cell.
Also involved in moving chromosomes away from the metaphase plate during cell division |
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Definition
| "microtubule organizing centers" |
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Term
| 3 categories of cell junctions |
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Definition
| tight junction, adherens and desmosome, and gap junction |
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Definition
| impermeable junction that encircles the cell |
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Definition
| an adhering belt that surrounds the apical end of an epithelial cell |
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Definition
| anchoring junction scattered along the sides of cells |
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Definition
| a nexus that allows chemical substances to pass between cells |
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