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Definition
-Primary complement of DNA is enclosed within a nucleus
-Often multicellular
-Contain many organelles, cytosol, the cytoskeleton, and a plasma membrane. |
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-DNA is not enclosed within a nucleus
-Single-celled
-Only one organelle |
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| A membrane-lined compartment that encloses the primary complement of DNA in eukaryotic cells. |
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| A highly organized structure, internal to a cell, that serves some specialized function. |
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| A protein rich, jelly-like fluid in which the cell's organelles are immersed. |
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| A kind of internal scaffolding consisting of three sorts of protein fibers |
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| The outer lining of the cell. |
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| The region of the cell inside the plasma membrane, but outside the nucleus. |
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| The double membrane that lines the nucleus in eukaryotic cells. |
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Definition
| An organelle that serves as the site of protein synthesis in the cell. |
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Term
| Rough Endoplasmic Reticulum |
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Definition
| A network of membranes that aids in processing of proteins in eukaryotic cells. |
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Definition
| Membrane spheres that move through the cytosol carrying proteins and other molecules. |
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Definition
| An interactive group of membrane-enclosed organelles and transport vesicles within eukaryotic cells. |
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Definition
| A network of membranes that processes and distributes proteins that come to it from the rough ER. |
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Term
| Smooth Endoplasmic Reticulum |
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Definition
| A network of membranes that is the site of the synthesis of various lipids, and a site at which potentially harmful substances are detoxified within the cell. |
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Definition
| An organelle found in animal cells that digests worn-out cellular materials and foreign materials that enter the cell. |
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Definition
| Organelles that are the primary sites of energy conversion in eukaryotic cells. |
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Definition
| A network of protein filaments that functions in the cell structure, cell movement, and the transport of materials within the cell. |
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Definition
| Microtubular extensions of cells that take the form of a large number of active, hair-like growths stemming from them. |
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Definition
| Long tail-like extensions of some cells that function in cell movement. |
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| The outer protective lining of plant cells. |
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Definition
| The organelle that is the site of photosynthesis in plant and algae cells. |
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Definition
-A chief component of plasma membrane
-Two layers of phospholipids arranged with fatty-acid chains pointing towards each other. |
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Definition
| A plasma membrane protein that binds with a specific signaling molecule. |
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Definition
| Proteins that facilitate the movement of molecules or ions from one side of the plasma membrane to the other. |
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Definition
| An outer layer of the plasma membrane composed of branched carbohydrate chains that attach to membrane proteins and phospholipid molecules |
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Definition
| A membrane forming the outer boundaries of many cells composed of a phospholipid bilayer that is interspersed with proteins and cholesterol and coated on its exterior face with carbohydrate chains. |
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Definition
| Movement of molecules or ions from a region of higher concentration to a region of lower concentration. |
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| The difference between the highest and lowest concentration of a solute within a given medium. |
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| The net movement of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration. |
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Definition
| A fluid that has a higher concentration of solutes than another. |
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Definition
| Two solutions that have equal concentrations of solutes. |
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Definition
| A fluid that has a lower concentration of solutes than another. |
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Definition
| Any movement of molecules or ions across a cell membrane that requires the expenditure of energy. |
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Definition
| Any movement of molecules or ions across a cell membrane that does not require the expenditure of energy. |
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Definition
| Diffusion through a cell membrane that does not require a special protein channel. |
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Definition
| Passage of materials through the plasma membrane that is aided by a concentration gradient and a transport protein. |
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Definition
| The movement of materials out of the cell through a fusion of a vesicle with the plasma membrane. |
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Definition
| The movement of relatively large materials into the cell by infolding of the plasma membrane. |
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Definition
"Cell-drinking"
A form of endocytosis that brings into the cell a small volume of extracellular fluid and the materials suspended in it. |
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Term
| Receptor-mediated Endocytosis |
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Definition
| A protein on receptors binds to specific molecules that make a lateral migration through the cell membrane. The receptors congregate in a coated pit that pinches off to create a vesicle that moves into the cell. |
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Term
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Definition
| A process of bringing relatively large materials into the cell by wrapping extensions of plasma membrane around the materials and fusing together. |
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