Only show
results for:

Topics related to "Organelle"

amyloplast
amyloplast , also called leucoplast, a nonpigmented organelle, or plastid, occurring in the cytoplasm of plant cells. Amyloplasts transform glucose, a simple sugar, into starch through the process of polymerization, and store starch grains within their stretched membranes. Especially large numbers o... Read more
cytoplasm
cytoplasm The material surrounding the nucleus of a cell. It consists of a matrix (see cytosol) in which the cell's organelles are suspended. The cytoplasm may be differentiated into dense outer ectoplasm, which is concerned primarily with cell movement, and less dense endoplasm, which contains most... Read more
eukaryote
eukaryote , a cell or organism composed of cells that have a membrane-bound nucleus and organelles (mitochondria, chloroplasts; see cell , in biology) and genetic material organized in chromosomes in which the DNA is combined with histone proteins. Eukaryotes are contrasted with the prokaryotes (... Read more
Monera
Monera taxonomic kingdom that comprises the prokaryotes ( bacteria and cyanobacteria ). Prokaryotes are single-celled organisms that lack a membrane-bound nucleus and usually lack membrane-bound organelles (mitochondria, chloroplasts; see cell , in biology). They have a small ring of DNA as thei... Read more
chloroplast
chloroplast , a complex, discrete green structure, or organelle, contained in the cytoplasm of plant cells. Chloroplasts are reponsible for the green color of almost all plants and are lacking only in plants that do not make their own food, such as fungi and nongreen parasitic or saprophytic higher ... Read more
Protista
Protista or Protoctista , in the five-kingdom system of classification, a kingdom comprising a variety of unicellular and some simple multinuclear and multicellular eukaryotic organisms. Protists, which are eukaryotes , have cells that have a membrane-bound nucleus, DNA that is associated with ... Read more
Ciliophora
Ciliophora , phylum in the kingdom Protista consisting of the ciliates, or ciliophores, complex freshwater or saltwater protozoans that swim by the coordinated beating of their cilia—short, hairlike structures that cover the cell surface. Like other protozoans, ciliates are unicellular het... Read more
Mitochondrion
Mitochondrion Mitochondria (singular mitochondrion) are abundant organelles present in nearly all eukaryotic cells . The main function of mitochondria is to produce adenosine triphosphate (ATP), the cellular energy source. Mitochondria are believed to be the evolutionary result of early anaerobi... Read more
cell
cell in biology, the unit of structure and function of which all plants and animals are composed. The cell is the smallest unit in the living organism that is capable of integrating the essential life processes. There are many unicellular organisms, e.g., bacteria and protozoans , in which the s... Read more
autoimmune disease
autoimmune disease any of a number of abnormal conditions caused when the body produces antibodies to its own substances. In rheumatoid arthritis , a group of antibody molecules called collectively RF, or rheumatoid factor, is complexed to the individual's own gamma globulin blood proteins; the ... Read more

Encyclopedia entries related to "Organelle"

Organelles and Subcellular Genetics
Encyclopedia entry from: The Gale Encyclopedia of Science Organelles and Subcellular Genetics Organelles are internal cellular structures...chloroplasts of plant cells are the only organelles that have their distinct genomes...and the mode of inheritance of organelle genomes are distinct from the...
Cell
Encyclopedia entry from: UXL Encyclopedia of Science ...nucleus and distinct organelles. An organelle is a small structure...eukaryotic cell. These organelles are held together...distinct nucleus and organelles. Flagellum: A whiplike...cells. Golgi body: Organelle that sorts, modifies...
Eukaryotae
Encyclopedia entry from: The Gale Encyclopedia of Science ...mitochondria. Other organelles, the lysosomes...cellular highway. An organelle called the Golgi...these represents an organelle. An example of an organelle is the mitochondrion...cell’s organelles enable eukaryotic...
cell
Book article from: The Oxford Companion to the Body ...also shown that the purified organelles could be made to work in isolation...Plant cells have additional organelles, the chloroplasts, which...apparatus. Thus although each organelle is a discrete structure...extensive communication between organelles. This intracellular trafficking...
Zellweger Syndrome
Encyclopedia entry from: Gale Encyclopedia of Neurological Disorders ...involve defects in the distinct cytoplasm organelles of cells called the peroxisomes; these...synthesized proteins into small cytoplasmic organelles called peroxisomes. Zellweger syndrome...Goldfischer in 1985. The absence of these organelles in the liver is currently thought to...
Prokaryote
Encyclopedia entry from: The Gale Encyclopedia of Science ...many of the other small organelles found in the larger eukaryotic...Some of the eukaryotic organelles, particularly mitochondria (the organelle that contains energy-producing...and chloroplasts (the organelle that contains photosynthetic...
cell membranes
Book article from: The Oxford Companion to the Body ...membrane, most cells contain a variety of organelles — internal structures that...from the cytoplasm. Although the many organelles within the cell are enclosed by membranes...membrane vesicles that bud from one organelle and fuse with the other; for example...
Chloroplast
Encyclopedia entry from: The Gale Encyclopedia of Science Chloroplast Chloroplasts are organelles—specialized parts of...chloroplast is a small lens-shaped organelle, which is enclosed by two membranes...on its own and became an internal organelle, the chloroplast. See also Leaf...
Amoeba
Encyclopedia entry from: UXL Encyclopedia of Science ...endoplasm) containing structures called organelles. Amoebas may have one or more nuclei...semifluid substance of a cell containing organelles and enclosed by the cell membrane. Organelle: A functional structure within the cytoplasm...
Archaebacteria
Encyclopedia entry from: The Gale Encyclopedia of Science ...prokaryotes, have no membrane-bound organelles. This means that the archaebacteria...TERMS Chloroplast — Green organelle in higher plants and algae in which...membrane. Eukaryotic cells also have organelles that perform specific metabolic tasks...

Dictionary entries related to "Organelle"

organelle
Book article from: A Dictionary of Plant Sciences organelle Within a cell, a persistent structure that has a specialized function. In most cases, the organelle is separated from the rest of the cell by selectively permeable membranes.
cytoplasmic inheritance
Book article from: A Dictionary of Biology ...The phenomenon occurs because certain organelles, the mitochondria and (in plants...amount of cytoplasm containing many such organelles, which are consequently incorporated...almost solely of a nucleus. Cytoplasmic organelles are thus not inherited from the male...
mitochondrion
Book article from: A Dictionary of Zoology ...mitochondrion An oval, or occasionally round or thread-shaped, organelle , whose length averages 2 μm and that occurs in...the inner matrix to varying depths. It is a semiautonomous organelle containing its own DNA and 70S ribosomes , and reproducing...
extranuclear genes
Book article from: A Dictionary of Biology extranuclear genes Genes included in the DNA present in organelles other than the nucleus, such as the mitochondria and chloroplasts...which code for the synthesis of proteins. The DNA of these organelles is inherited by the offspring via the cytoplasm of the gametes...
lysosome
Book article from: A Dictionary of Biology lysosome A membrane-bound sac (organelle) found in animal cells and in single-celled eukaryotes...lysosomes do not contain debris, but fuse with vesicles or organelles containing material for disposal, forming a secondary lysosome...
ribosome
Book article from: A Dictionary of Plant Sciences ...in diameter, composed of RNA and protein , which is found in large numbers in all types of cells and in some subcellular organelles . Ribosomes are the site of protein synthesis: m-RNA attaches to them and there receives t-RNA molecules bearing amino...
cirrus
Book article from: A Dictionary of Earth Sciences ...fibrous filaments aligned approximately along their line of movement. See also CLOUD CLASSIFICATION . 2. In certain ciliate protozoa , an organelle formed by the fusion of a group of cilia , which usually functions in locomotion or feeding.
nucleic acids
Book article from: A Dictionary of Earth Sciences ...forms, designated DNA and RNA, and may be double- or single-stranded. DNA embodies the genetic code of a cell or organelle, while various forms of RNA function in the transcriptional and translational aspects of protein synthesis.
plastid
Book article from: A Dictionary of Plant Sciences plastid An organelle that is believed to have evolved from an autotrophic (see AUTOTROPH ) endosymbiont early in plant evolution. Plastids occur in...
sedimentation factor
Book article from: A Dictionary of Ecology sedimentation factor( sedimentation value , S factor , S value ) A measure of the rate at which a molecule, organelle, or particle settles under standard conditions of centrifugation. It is equal to the acceleration, measured in Svedberg units...

Related newspaper, magazine, and trade journal articles from HighBeam Research

Organelle discovery challenges theory, could yield targeted disease treatment.
Newspaper article from: Biotech Week; 7/9/2003; 700+ words ; ...origin of eukaryotic organelles and suggests a...organisms. "The organelle we found in the...compartments such as organelles not somehow linked...describe is a discrete organelle independent of...membrane-surrounded organelles emerged in eukaryotes...appears that this organelle has ...
Cell organelle employment advertisements.(TRIED AND TRUE)
Magazine article from: Science Scope; 11/1/2008; ; 700+ words ; ...functions of cell organelles? If you answered yes, then organelle employment...student pick an organelle out of a hat...ensure that all organelles have been...researches one organelle, the oral...the other organelles from their...
Stability and Robustness of an Organelle Number Control System: Modeling and Measuring Homeostatic Regulation of Centriole Abundance
Magazine article from: Biophysical Journal; 9/1/2007; ; 700+ words ; ...cell type, different organelles will tend to be present...set-point of the organelle abundance control system...different methods of organelle partitioning or segregation...Previous studies of organelle abundance have focused on membrane-bound organelles such as chloroplasts...
Multidimensional fluorescence microscopy of multiple organelles in Arabidopsis seedlings.(Research)
Magazine article from: Plant Methods; 5/19/2008; ; 700+ words ; ...motility of several organelles, including mitochondria...deposited in the plant organelle database (PODB...marking only a few organelles with one or two fluorescent...close localizations of organelles as organelle-organelle interactions...
Theory of Spatial Patterns of Intracellular Organelles
Magazine article from: Biophysical Journal; 5/15/2006; ; 700+ words ; ...among many motors, organelles, and cytoskeletal...physical aspects of organelle transport; however...spatial patterns of organelles (the effect) and...most intracellular organelles, this approximation...the key features of organelle transport reported...
In vitro assays demonstrate that pollen tube organelles use kinesin-related motor proteins to move along microtubules
Magazine article from: Plant Cell; 1/1/2003; ; 700+ words ; ...required for organelle transport in...movement of organelles was cytosol...present on the organelle surface. By washing organelles with KI, it...support for organelle transport...positioning of many organelles, including...
Nonperturbative Chemical Imaging of Organelle Transport in Living Cells with Coherent Anti-Stokes Raman Scattering Microscopy
Magazine article from: Biophysical Journal; 7/15/2006; ; 700+ words ; ...Intracellular trafficking of organelles driven by molecular...functioning ( I ). Different organelles may exhibit different...profound changes in organelle transport. To monitor...compounds. For certain organelles. the limitations of...lipid droplet (LD) organelle. a cellular structure...
Localization of myosin on tubulovesicular organelles in the squid giant axon immuno-EM.
Magazine article from: The Biological Bulletin; 10/1/1996; ; 700+ words ; ...initial studies, we have isolated an organelle fraction (4) that retains the...actin (5). Motility of these organelles can be reconstituted without the...associated with these organelles. The organelle fraction was prepared by incubating...
Rational analyses of organelle trajectories in tobacco pollen tubes reveal characteristics of the actomyosin cytoskeleton
Magazine article from: Biophysical Journal; 3/1/1999; ; 700+ words ; ...the observation of single organelles by video microscopy (Heslop...the simple consensus that organelles move smoothly back and forth...to track a large number of organelles in the cytoplasm of pollen...extensive data on sequential organelle position in tobacco pollen...
Organelle proteomics.(Brief Article)(Book Review)
Magazine article from: SciTech Book News; 6/1/2008; 500 words ; ...list assigned to an organelle. It presents detailed...instructions for studying organelle proteomes by performing...purification of the various organelles present in eukaryotic...looks at analysis of organelles, vesicles, and protein...proteins identified in the organelle sample. A series ...