organelle
noncellular structure in a cell that serves a specific function
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
Organelle
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Organelle
In cell biology, an organelle is one of several structures with specialized functions, suspended in the cytoplasm of a eukaryotic cell.
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Definition of organelle :
A subcellular structure having a specialized function for example the mitochondrion, the chloroplast, or the spindle apparatus.
Organelle
An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body.
Organelle Biogenesis and Positioning in Plants David E. Evans and Chris Hawes..........
organelle -- n. A membrane-bound structure in a eukaryotic cell that partitions the cell into regions which carry out different cellular functions, e.g., mitochondria, endoplasmic reticulum, lysosomes.
organelles Cell components that carry out individual functions; e.g., the cell nucleus and the endoplasmic reticulum. Subcellular structures (usually membrane-bound and unique to eukaryotes) that perform some function, e.g.
organelle
(or-guh-nel) [Gk. organon, instrument, tool]
One of several formed bodies with a specialized function, suspended in the cytoplasm and found in eukaryotic cells.
organic ...
organelles - membrane bound structures found inside the cell.
prophase - stage of mitosis in which replicated chromosomes condense; nuclear membrane dissociates; centrioles migrate to the poles of the cell.
Organelle (OR-gun-EL) A specialized, membrane-bounded structure that has a specific function in a cell. Examples include the nucleus, mitochondria, Golgi, ER, and lysosomes.
Organelles are formed bodies within the cytoplasm that perform certain functions. Some organelles are surrounded by membranes, we call these membrane-bound organelles.
Organelle. A cell structure that carries out a specialized function in the life of a cell.
Origin of replication. The nucleotide sequence at which DNA synthesis is initiated.
OSHA. See Occupational Safety and Health Administration.
Organelle the "body parts" within a cell
(organum = an instrument‚ implement‚ engine; -elle = small)
Oriental Realm the biogeographical realm consisting of India and southeast Asia
(orient(al) = rising‚ east) ...
Organelle
A structure in a single-celled living thing that has a special task as an organ does in a many-celled living thing.
Source : Word Central Student's Dictionary
Organism ...
organelle A body within the cytoplasm of eukaryotic cells; several different types of organelles occur, each with a specialized function such as the chloroplast, which functions in photosynthesis.
The organelle that carries out photosynthesis and starch grain formation. A chlorophyll-containing organelle in plants that is the site of photosynthesis.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
The organelles of this flagellated alga are clear, such as the red eyespot, the chloroplasts, and the flagella. Unrestricted, Euglena moves in a rotating motion using its flagella.
Some organelles have two membranes. A mitochondrion has an outer and inner membrane. The outer membrane contains the mitochondrion parts. The inner molecule holds digestive enzymes that break down food.
- An organelle, consisting of two subunits of RNA and proteins, that synthesizes polypeptide whose amino acid sequences are specified by the nucleotide sequences of the mRNA
Rice ...
other organelles, such as mitochondria, that have ceased functioning properly and have been engulfed in autophagosomes
food molecules or, in some cases, food particles taken into the cell by endocytosis ...
The cellular organelle in eukaryotes that contains most of the genetic material.
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Oligo ...
nucleus
An organelle of eukaryotic cells that is bounded by a nuclear membrane and contains the chromosomes whose genes control the structure of proteins within the cell.
Covered in: BIOL1020 Lab 3 Cells
O ...
What is alive?
Organelles
More organelles
Cystic fibrosis and membrane receptors
Organelle not in animal cells
Mitochondria and chloroplasts ...
See also: cell, organelle.
Please contribute to this project, if you have more information about this term feel free to edit this page ...
Cilia Hairlike organelles made of microtubules that protrude from the surface of the cell and move liquid past the cell surface; responsible for movement of many single-celled organisms.
"Ancient invasions: from endosymbionts to organelles". Science 304 (5668): 253-7. PMID 15073369.
^ Lang B, Gray M, Burger G. "Mitochondrial genome evolution and the origin of eukaryotes". Annu Rev Genet 33: 351-97. PMID 10690412.
Centrioles - essential tubular organelles found near the nucleus in pairs that aid in cellular division
Chlorophyll - the green material found in chloroplasts that is active in photosynthesis ...
Mitochondrial DNAMitochondria, and chloroplasts in plants, carry their own small chromosomes, usually in multiple copies per organelle. These carry a limited number of genes which code for rRNA, tRNA and a few organelle proteins.
Eukaryotic cells contain many organelles. Until the invention of the electron microscope little was known about the cell organelles which are too small to be resolved in the light microscope.
It is the rough endoplasmic reticulum that is directly continuous with the nuclear envelope (as illustrated in Figure 1), which is also studded with ribosomes, and the two organelles are thought to have evolved simultaneously in ancient cells.
Chloroplasts and mitochondria are organelles within eukaryotic cells (cells of organisms other than bacteria, which do not have organelles). These organelles have their own genetic material.
This view, championed by Lynn Margulis, speculates that these ATP-producing organelles were once free-living prokaryotes that were engulfed by a proto-eukaryote - an idea now strongly supported.
An organism lacking a nuclear membrane and certain organelles such as mitochondria. Refers to both Bacteria and Archae. This term was used synonymously with bacteria before the differences between Bacteria and Archae were understood.
Members of this genus are photoautotrophs that can generate chemical energy through an electron transport chain in the cytoplasmic membrane that is associated with a light-harvesting complex housed in a specialized organelle called the chlorosome.
acrosomal vesicle - membrane-bound organelle in the head of a sperm that is derived from the golgi apparatus; the vesicle containing enzymes that digest proteins and complex sugars in the outer coverings of an egg.
Inside a cell are tiny organs called organelles The word organelle is a big word that means small organ. These organelles function to provide for the needs of the cell.
Prokaryotic cells do not have a true nucleus. They have few organelles, and have no membrane-bound organelles. In cyanobacteria, the cell membrane folds inward in a number of places allowing for the attachment of enzymes.
Golgi apparatus - membrane-bounded organelle in eucaryotic cells where the proteins and lipids made in the endoplasmic reticulum are modified and stored.
hydrogen bond - bonds formed by polarized molecules (+ -), i.e. water.
Chloroplast: In eukaryotic organisms, the cellular organelle in which photosynthesis takes place,
Chromosome: A linear sequence of genes wound up with proteins into a single unit that is found in the nucleus of cells. See also DNA, genes.
The prokaryotic cells do not have membranous organelles, although their membranes have invaginations that extend into the cytosol. Those invaginations determine certain functions, like the secretion of substances and the synthesis of DNA and RNA.
Schematic of typical animal cell depicting the various organelles and structures
Main articles: Molecular biology, Cell biology, Genetics, Developmental biology ...
Nucleus: The cellular organelle in eukaryotes that contains the genetic material.
O ...
Magnetic particles that are created within organelles.
MICROSCOPIC MAGNETIC RESONANCE IMAGING ...
Nucleus
The term introduced by Brown (1833) for the more or less spherical structure which occures in cells and stains deeply with basic dyes. The cellular organelle in eukaryotes that contains the genetic material.
kytos - a hollow vessel, now often taken to mean a cell; Gr. plasma - anything formed or moulded]. A jelly-like material bounded by the plasma membrane of the cell, containing organelles (excluding the nucleus) and providing a medium for metabolic ...
Eukaryote: Organism whose cells have (1) chromosomes with nucleosomal structure and are separated from the cytoplasm by a two-membrane nuclear envelope, and (2) compartmentalization of functions in distinct cytoplasmic organelles.
eukaryotes with a nucleus and rod shaped chromosome but no mitochondria or plastid, thus believed to be the intermediate stage between prokaryotes and eukaryotes. They are also used as evidence for the evolution of nucleus before the organelles.
The chloroplast genome consists of about 100 protein coding genes, 30 tRNAs genes and 4 rRNAs genes. Most chloroplast proteins are coded for by the nuclear genome, synthesised in the cytoplasm and transproted into the organelle.
cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate molecule, and a sugar molecule (deoxyribose in DNA and ribose in RNA). Thousands of nucleotides are linked to form a DNA or RNA molecule.
Nucleus The cellular organelle ...
Mitochondrial DNA -- the mitochondrial genome consists of a circular DNA duplex, with 5 to 10 copies per organelle. Mitosis -- nuclear division.
 See also: Organ, Cells, Cell, Membrane, Protein
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