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| Gives shape, acts as tracts, gives strenghth, protects DNA |
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| Protection of proteins and lipids |
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| Link amino acids together to make proteins |
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| Processes, sorts, and delivers proteins |
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| sperearte material from cytoplasm |
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| Supply energy by turning molecules into food |
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| sac used to store materianls. |
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| sacs that contain enzymes that defend cells from invaders |
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| contains cell contents, what enters and exits |
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| describes the arrangment of molecules making up the cell membrane- the membrane is flexible and has a variety of molecules like the variety of titles in a mosiac |
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| Form a double layer surrounding a cell; Composed of a charged phoshate group, glycerol, and two fatty acid chains; head is polar and forms hydrogen bonds with water; tail is nonpolor |
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| Selective permeability/ Semipermeable |
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| allows some meterals to cross, enables a cell to maintain homeistasis |
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| detect a singal molecule and perform an action in responce |
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| Located inside a cell; bind molecules that can cross membrane |
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| the movement of molecules across a membrane without energy input from a cell |
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| Movement of molecules from a higher to lower concentration |
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| The diffusion of molecules across a membrane trough transport protiens; requires no energy input from the cell |
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| Drives molecules across a membrane from lower to higher concentration |
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| the process of taking in liquids or larger molecules into a cell by engulfing in a vesicle; requires energy |
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| The process of releacing substances out of a cell by fusion of a vesicle with the membrane. |
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| Scientists Who Contrubited to the cell theory |
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| Hooke, Leeuwenhoke, Schleiden, Sche=wann, Virchow |
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| Important Technological Advances |
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| Improvements in the the mirco, such as better lenses |
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| [image]The Princables of cell theory |
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| All organisms are made of cells. All existing cells are produced by other living cells. The cell is the most basic unit of life. THE CELL THEORY:one of the the first unifing cocepts developed in biology. This is a Eukaryotic cell |
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| The common features of prokaryotic and eukaryotic cells are |
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1. DNA, the genetic material contained in one or more chromosomes and located in a nonmembrane bound nucleoid region in prokaryotes and a membrane-bound nucleus in eukaryotes
2. Plasma membrane, a phospholipid bilayer with proteins that separates the cell from the surrounding environment and functions as a selective barrier for the import and export of materials
3. Cytoplasm, the rest of the material of the cell within the plasma membrane, excluding the nucleoid region or nucleus, that consists of a fluid portion called the cytosol and the organelles and other particulates suspended in it
4. Ribosomes, the organelles on which protein synthesis takes place |
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