問題一覧
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The foundation unit of life
cell
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Who invented The Cell theory
Mathias J. Schleiden, Theodore Schwan
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He believed that all cells comes from pre-existing cells
Rudolf Virchow
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First record of seeing and identifying a cell
Robert Hooke
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- earliest and most primitive cells - consists of organisms from the domain Archea and Bacteria
Prokaryotic Cell
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- highly evolved, complex structures, and larger sized compared to prokaryotes
Eukaryotic Cells
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Functions as a barrier to separate the environment and the internal structures
Cell Membrane
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composed of protein and molecules that are randomly scattered
membrane proteins
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Scattered in the cell membrane
fluid mosaic
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Additional boundary between cell membrane & external, environment
Cell Wall
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jellylike substance that act like a cushion
Cytoplasm
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liquid component of cytoplasm
cytosol
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The storehouse of DNA
Nucleus
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The long chain molecule of inheritance made of segmented portions called genes
DNA
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An extensive folded membrane that occupies a large space in the cytoplasm
Endoplasmic Reticulum
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An ER that closes the nucleus
Rough ER
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ER that has no ribosomes are present
Smooth ER
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sites of protein synthesis
Ribosomes
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Intracellular digestion by means of autogaphy
Lysosomes
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The whole endoplastic reticulum: packaging warehouse of ER
Golgi Apparatus/ Body
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powerhouse of the cell
Mitochandria
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chemical energy
Adenosine Triphospate
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Large organelles only found in plant cells
Plastids
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color green; photosynthesis occurs
chloroplasts
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colored plastids such as carotenoids: gives colors to flowers and plants
Chromoplasts
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non colored plastids: does not contain pigments
Leucoplasts
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starch filled
amyloplasts
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stores oil
elaioplasts
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stores proteins
Aleuroplasts
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Flexible network of protein; mechanical & structural support
Cytoskeleton
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The thickest and longest filament composed of tubulin
microtubule
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smaller than microtubles and provides the cell tensile strength
Intermediate Filament
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the thinnest filament composed of actin which is present in nearly all cell types of eukaryotes
Microfilament
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small dense region in the cytoplasm where microtubles are assembled and arranged
Cetresomes and Centrioles
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Inside the cetresome are two hollow cylinders made of filaments (which are Microtuble triplets called
centrioles
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cells are joined together by structures called junctions
Cell Surface and Junctions
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fuses cells together to form an impassable barrier using actin fibers
Tight Junctions
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Connects two neighboring cells together or a cell to the extra cellular matrix
Adhesion Junctions
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A channel protein links with the cytoplasm of an adjacent cell
Gap Junctions