40 results found

Search Results for: exogenous

Exogenous pyrogen

Definition noun, plural: exogenous pyrogen A type of pyrogen that is of microbial origin, such as the lipopolysaccharide in... Read More

Exogenous

Exogenous (Science: biology) Developed or originating outside the organism, as exogenous disease. Origin: gr. Gennan = to... Read More

Exogenous antigen

Definition noun Antigen that enters the body of the organism from the outside, e.g. through inhalation, ingestion, or... Read More

Antigen

Antigen Definition What is an antigen? A simple definition is that an antigen refers to any substance that triggers an... Read More

Substance

Substance Definition What is a substance? The word substance finds varied usages in different science fields. In general... Read More

Purine

Definition noun plural: purines pu•rine, ˈpjʊəɹiːn A heterocyclic aromatic compound with a chemical structure... Read More

Diurnal rhythm

Definition noun, plural: diurnal rhythms A biological rhythm that primarily express a periodicity during daylight... Read More

Immune response

Immune Response Definition An immune response is defined as the reaction of the body in response to the presence of a... Read More

Albumin

Albumin Definition What is albumin? Is albumin a protein? In biology, albumin is a protein that is responsible for the... Read More

Biological clock

Definition noun, plural: biological clocks Any of the various mechanisms that regulate biological rhythms Supplement A... Read More

Pyrogen

Definition noun, plural: pyrogens A substance inducing fever by acting on the hypothalamic thermoregulatory center and... Read More

Endogenous pyrogen

Definition noun, plural: endogenous pyrogens A type of pyrogen produced by activated immune cells, and incite the rise in... Read More

Ultradian rhythm

Definition noun, plural: ultradian rhythms A biological rhythm that is repeated throughout a 24-hour circadian day and... Read More

Infradian rhythm

Definition noun, plural: infradian rhythms A biological rhythm that is repeated longer than a 24-hour circadian day and... Read More

Zeitgeber

Definition noun, plural: zeitgebers An external or environmental cue that helps regulate biological clock that drives... Read More

Glycogenesis

Definition noun The metabolic process of producing glycogen from glucose for storage mainly in liver and muscle cells in... Read More

Transgenesis

Definition noun The process of introducing transgene from one organism into another (unrelated) organism or... Read More

Electrotropism

Definition noun Growth or movement of a cell or an organism in response to an electric field Supplement In general, tropism... Read More

Adenosine triphosphate

Adenosine Triphosphate Definition noun plural: adenosine triphosphates (biochemistry) An organic compound that is... Read More

Hepatocyte

Definition noun, plural: hepatocytes Any of the large, polygonal-shaped cells in the liver. Supplement Hepatocytes are the... Read More

Chronobiology

Definition noun A biological science that studies time-related phenomena in living organisms Supplement Chronobiology is a... Read More

Growth inhibitors

Growth inhibitors endogenous or exogenous substances which inhibit the normal growth of human and animal cells or... Read More

Methods of Breaking Seed Dormancy

Definition of Seed Dormancy: Non – germination of seeds due to absence of suitable conditions is termed as dormancy.... Read More

Circadian rhythm

Circadian Rhythm Definition A circadian rhythm is an endogenously-driven biological rhythm with a period close to 24... Read More

Ribonucleotide

Definition noun plural: ribonucleotides ri·bo·nu·cle·o·tide, ˌraɪbəʊˈnjuːklɪəˌtaɪd A form of nucleotide in... Read More

Tropism

Definition noun, plural: tropisms A movement or growth response of a cell or an organism to a stimulus, which may either be... Read More

Adenine

Definition noun plural: adenines ad·e·nine, ˈædɪnɪn (biochemistry) A purine nucleobase that complementary pairs... Read More

Guanine

Definition noun plural: guanines gua·nine, ˈɡwɑː.niːn (biochemistry) A purine nucleobase that complementary pairs... Read More

Humoral immunity

Let’s get to know where one should place humoral immunity, the topic of today’s discussion!! By the end of the article,... Read More

Polysaccharide

Polysaccharide Definition Biology Definition: A polysaccharide is a carbohydrate formed by long chains of repeating units... Read More

Self antigen

Definition noun, plural: self antigens An exogenous antigen that is recognized as nonself by the immune system, which should... Read More

Moon face

Definition noun The face swelling up into a rounded or moon shape, with large jowls, due to increased fat deposition... Read More

Glucose

Glucose occurs naturally and is ubiquitous. It is one of the three most common monosaccharides; the other two are fructose... Read More

Carbohydrate

Carbohydrate Definition A biomolecule refers to any molecule that is produced by living organisms. As such, most of them... Read More

Elicitor

Elicitor (Science: plant biology) substance that induces the formation of phytoalexins in higher plants. May be exogenous... Read More

Transgenic

Definition adjective Of, pertaining to, or relating to an organism that has genes from another organism put into its genome... Read More

Glycogen

Definition noun plural: glycogens gly·co·gen, glī′kə-jən A multi-branched polymer of glucose, mainly produced in... Read More

Fastidious

Fastidious Definition We can define fastidious as a term used in microbiology to denote a species that lacks the ability to... Read More

Sugar

Sugar Definition The term sugar is the generic term for any disaccharides and monosaccharides. Sugars are an essential... Read More

Recombination DNA repair

Recombination DNA Repair Definition Recombination DNA repair is a biological reparative process in response to DNA damage... Read More