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A typical animal cell.
a term applied to molecules containing carbon, except those that are derivatives of carbon dioxide; practically all organic molecules contain carbon atoms linked together ...
In biology and ecology, an organism is a living being.
Organizing the Embryo: The Central Nervous System
In the embryonic development of a zygote, gradients of mRNAs and proteins, deposited in the egg by the mother as she formed it, give rise to cells of diverse fates despite their identical genomes.
Any foods grown without the use of chemical fertilisers or pesticides, in soil made rich by composting and mulching. Pertaining to carbon-based compounds produced by living plants, animals or by synthetic processes.
Organic compounds are compounds composed of carbon, hydrogen and often oxygen or nitrogen. Organic compounds are named so because they are associated with living organisms.
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Any membrane-limited structure found in the cytoplasm of eukaryotic cells.
Organic molecules are molecules that contain carbon and hydrogen.
(Date:3/28/2011)... Ky., (March 28, 2011) University of Kentucky plant ... role early on in the ability of plants, animals, ... range of pathogens at the cellular level, which is ... been known for more than 100 years, but the ...
An organ is part of the body which, forms a structurally and functionally separate unit and is made up of more than one type of tissue. Examples of plant organs are leaves, roots and stems.
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.
The major organ systems of the body and their functions are the (1) integumentary system for protection, excretion, receipt of external stimuli (outer covering of skin); (2) muscular system for movement, posture, heat production; ...
(Organa Genitalia Muliebria)
The female genital organs consist of an internal and an external group. The internal organs are situated within the pelvis, and consist of the ovaries, the uterine tubes, the uterus, and the vagina.
A base is a chemical compound which can neutralize an acid. It can combine with a hydrogen from an acid. Organic bases are bases witha carbone backbone. Purines and pyrimidines are organic bases.
Organ Systems of the Body A health-related view of the body organ systems.
How the Body Works A Canadian site with way cool "fig" leaves!
Homeostasis A collection of links dealing with organ systems and homeostasis.
Organic molecules are those that: 1) formed by the actions of living things; and/or 2) have a carbon backbone. Methane (CH4) is an example of this.
Ecology: Organisms and Their Environments Topics
Table of Contents
Well, the organic spores, I'm not really familiar with how they use those, because they don't use them a lot in this particular area because of the lower incidence of corn borer.
Eukaryotic Organelles: The Cell Nucleus, Mitochondria, and Peroxisomes
Leaf Tissue Organization
The plant body is divided into several organs: roots, stems, and leaves. The leaves are the primary photosynthetic organs of plants, serving as key sites where energy from light is converted into chemical energy.
UNC-69 and UNC-76 regulate presynaptic organization cooperatively
We showed above that UNC-69 is required for localization of synaptic vesicles in axons.
Organization of Plants and Animals - Cells, Tissues, Organs, Organ Systems
Plant and animals have a hierarchy of cellular architecture
At the lowest level are cells ...
Organisms depend on the cohesion of water molecules.
The hydrogen bonds joining water molecules are weak, about 1/20 as strong as covalent bonds.
They form, break, and reform with great frequency.
organ of Corti
The actual hearing organ of the vertebrate ear, located in the floor of the cochlear canal in the inner ear; contains the receptor cells (hair cells) of the ear.
Organisms that follow the zygotic life cycle spend the majority of their life cycle in a haploid state.
To review this concept in more detail, click here.
Continue to Question 6 ...
organelle /OR-gÉ™-NELL/ One of the tiny, membrane-bounded organs with various specialized functions found in eukaryotic cells.
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.
Organic agriculture: A concept and practice of agricultural production that focuses on production without the use of synthetic pesticides.
organic. A material (e.g. pesticide) whose molecules contain carbon and hydrogen atoms. Also may refer to plants or animals which are grown without the use of synthetic fertilizers or pesticides.
organogenesis - creation of specific tissues and bodily organs by cell interaction and rearrangement following gastrulation.
oviparous - producing offspring from externally laid eggs. Contrast with viviparous ...
organelles: Separated components within a cell with specialized functions, e.g. nuclei (containing most of the genetic material), mitochondria (respiratory energy supply for the cell), chloroplasts (location of photosynthesis) etc.
organelles microscopic bodies within the cytoplasm that perform distinct functions.
osmosis the movement of water molecules across a membrane from a region of high concentration to a region of low concentration.
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.
Organic: Part of or derived from living organisms. Or a chemical compound that contains carbon as an essential component. Compare inorganic.
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) ...
The cell is a unit of organization
Cells are classified by fundamental units of structure and by the way they obtain energy.
centimorgan (cM) The metric used to describe linkage distances. A centimorgan is the distance between two genes that will recombine with a frequency of exactly one percent.
Beyond the role they play in internal cell movement, microtubules also work together to form larger structures that work on the outside of the cells.
A unit of measure of recombination frequency. One centimorgan is equal to a 1% chance that a marker at one genetic locus will be separated from a marker at a second locus due to crossing over in a single generation.
Effect on organ:
Motor neurone releases:
Inhibitory effect / relaxation
Acetylcholine (ACh) ...
Organization: National Institute on Drug Abuse
Organization: National Institute on Alcohol Abuse and Alcoholism
Organization: Smoking and Nicotine Addiction (Medline Plus)
TV Show Website: Moyers on Addiction (Close to Home, PBS) ...
Organic compounds are compounds that are found in living organisms and contain carbon. Inorganic compounds are the ones that don’t contain carbon.
Organic nutrients. Nutrients in the form of molecules synthesized by or originating from other organisms
Osmoconformer. An organism whose body fluids change directly with a change in the concentrations of dissolved ions in the external medium ...
Organisation of African Unity (now known as the African Union)
Organisation de Coopération et de Développement Economiques ...
Organisms are physicochemical systems with a history shaped by evolutionary processes over the course of billions of years.
Even processes as amazing as dreaming and laughing are based on natural systems, and so can be studied scientifically.
organism having a notochord at some stage of development - a rigid cartilaginous rod in the back extending from anterior to posterior; this group includes the vertebrates.
Organisms get oxygen from their environment in a variety of ways. Many land animals breath oxygen directly from the air, while ocean bearing animals often use the oxygen dissolved in the water to survive.
Organisms taken from patient with necrotizing fasciitis, these bacteria are sometimes called "flesh-eating bacteria" - can be fatal in occasional cases. Shown growing time-lapse in culture.
1.3 Necrosis in neutrophil eating leukotoxic Strep ...
Organisms are not passive targets of their environment. Each species modifies its own environment. At the least, organisms remove nutrients from and add waste to their surroundings. Often, waste products benefit other species.
organic Living or once living material; compounds containing carbon formed by living organisms.
organic compound A molecule that contains carbon, hydrogen, and usually oxygen.
ORGANIZATION: The living beings present a functional and structural organization. Both, structure and function, are narrowly interrelated.
organic phenomenon ((biology) a natural phenomenon involving living plants and animals)
mutant; mutation; sport; variation ((biology) an organism that has characteristics resulting from chromosomal alteration) ...
Organ a structure within a multicellular organism that is made up different types of tissues working together to perorm a particular function, e.g. the stomach in a human or a leaf in a plant.
All organisms begin as a single cell, but multicellular organisms have programming to produce cells that have considerably different characteristics, even though the DNA is presumably identical. Kim, et al.
A central organizing concept in biology is that life changes and develops through evolution, and that all life-forms known have a common origin.
anaerobe - organism that wants very little or no oxygen
autotrophs - organisms that need no preformed organic foods
bacterial endospores - see endospores ...
Organisms whose individuals produce only one type of gamete; i.e. humans (either male or female). See monoecious.
Mature male or female reproductive cell (sperm or ovum) with a haploid set of chromosomes (23 for humans).
Chromosome organized in nucleosomes composed of histones and other protein factors.
An organism comprised of cells from 2 or more zygotes.
Mostly diploid cell formed by union of twogametes or reproductive cells. Ovum (female gamete) fertilized by a sperm (male gamete).
4. How these organisms obtain food & oxygen, reproduce, move and protect themselves.
5. How this phylum relates to the rest of the world - are there any parasites? Does it have economic significance? Medical uses?
Pest: An organism that interferes with human activities, property, or health, or is objectionable.
Pest management: see Integrated pest management.
Pesticide: A substance that is used to kill, debilitate, or repel a pest.
Jacobson's organ: In some vertebrates, an accessory olfactory organ developed in connection with the roof of the mouth.
An organism that is different from other organisms of the same species due to genetic differences.
Human Genome Organization (HUGO): The Human Genome Organization (HUGO) is the international organization of scientists involved in the Human Genome Project (HGP), the global initiative to map and sequence the human genome.
Mollusk: An organism in the phylum Mollusca (for example, snails, clams, or squids), whose soft, unsegmented body parts are frequently enclosed in a shell.
More Biology Terms ...
Carotenoids: organic pigments occurring in plants, such as carotene, many of which can be converted to Vitamin A in humans.
Chromosome: the structure in the eukaryotic nucleus and in the prokaryotic cell that carries most of the DNA.
inflammation of the organ in the uterus to which the embryo is attached ...
Base sequence -- a partnership of organic bases found in DNA and RNA; adenine forms a base pair with thymine (or uracil) and guanine with cytosine in a double-stranded nucleic acid molecule.
HUGOAcronym for Human Genome Organization, an international organization conceived in 1988 to co-ordinate the Human Genome Project. Human Genome ProjectA worldwide project to map and sequence the human genome.
Expressivity — A parameter used in genetic models that quantifies the degree to which an inherited characteristic is expressed in an organism.
In genetics, conferring the right or title to genes, gene variations, or identifiable portions of sequenced genetic material to an individual or organization.
See also: gene (ORNL)
Homonym One of two or more scientific names that are identical but pertain to different organisms, e.g., Eriococcus mancus Ferris, 1955 and Eriococcus mancus (Maskell, 1897); Onceropyga Ferris, 1955 and Onceropyga Turner, 1904.
Cell The basic structural unit of all living organisms. A human cell is made up a central nucleus (containing DNA) a cytoplasm and a outer cell membrane.
Centimorgan (cM) A unit of measure of recombination frequency.
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.
Angiosperm: The most recently evolved and the largest group of plants whose reproductive organs are in their flowers (flowering plants).
directed acyclic graph A way of organizing objects according to their relationships to one another. The relationship between objects is directed; parent objects can have children.
This term is used by geneticists in two different senses: (1) One member of a chromosome pair in diploid organisms, and (2) A gene from one species, for example the mouse, that has a common origin and functions the same as a gene from another species, ...
Genome: The total DNA contained in each cell of an organism. Mammalian genomic DNA (including that of humans) contains 6x109 base pairs of DNA per diploid cell.
Microbes are extremely small organisms that cannot be see without a microscope. Microbes are all around us. They can survive under some of the most extreme conditions, they are sometimes harmful to us, and they are essential to our survival.
Bacteria: Tiny one-celled organisms.
Bases: The molecular building blocks of DNA and RNA: adenine, cytosine, guanine, thymine, and (in RNA only) uracil. In DNA, A attaches only to T, and C attaches only to G.
infection - growth of an organism within the body
lymphocytes - are central to all adaptive immune responses, since they specifically recognize individual pathogens, whether they are inside host cells or outside in the tissue fluids or blood.
GMO stands for genetically modified organism. This refers to bacteria or other microorganisms, or multicellular organisms such as plants and animals, whose genetic makeup has been altered by scientists.
In early organogenesis, three regions of mesoderm are evident: the epimere (= dorsal mesoderm) will form somites; the mesomere (= intermediate mesoderm, = nephrotome) will form the excretory system; ...
Biological Membranes are membranes produced by living organisms: for example, the plasma membrane (= cell membrane) and the membranes which surround organelles.
Gene: An ordered sequence of nucleotides which act as the functional subunit of hereditary information. The collection of genes in an organism determine the characteristics of that organism.
A procedure in which, at low temperature, the cellular water of, for example, cryofixed material is replaced by a series of organic solvents, including chemical fixative.
Body Plan: asymmetrical, bilateral symmetry, body cavity, body plan, cell, organ, organ system, tissue, curve, nervous system ...
If a significant amount of blood has been lost it can cause shock, harm to various parts of the body including major organs, and even death. Take urgent action to stop the bleeding ...
Epidemiology of Fish & Wildlife Diseases
Genetically Engineered Organisms ...
See also: Trans, Biology, Cells, Human, Cell