55 results found

Search Results for: endogenous

Endogenous pyrogen

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

Endogenous

Endogenous (Science: biology) developing or originating within the organisms or arising from causes within the... 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

Agonist

What is an Agonist? In biology, an "agonist" is the "doer of an action". Opposite of it is the antagonist, which opposes... Read More

Exogenous

Exogenous Definition Exogenous is a word referring to a factor or event coming or contributing from outside a defined... Read More

Chronobiology

Chronobiology Definition Chronobiology is a branch of biology that studies time-related phenomena (e.g., biological... Read More

Exogenous pyrogen

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

Substance

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

Diurnal rhythm

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

Infradian rhythm

What is the Infradian Rhythm? An infradian rhythm is a type of biological rhythm that lasts longer than 24 hours, with a... 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

Circadian rhythm

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

Pyrogen

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

Purine

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

Lipotropin

Definition noun, plural: lipotropins A polypeptide hormone of the anterior pituitary gland, presumably acts by promoting fat... Read More

Biological clock

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

Ultradian rhythm

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

Beta-blocker

Definition noun, plural: beta-blockers A drug that blocks the action of endogenous catecholamines on beta-adrenergic... Read More

Chronobiologist

Definition noun, plural: chronobiologists A professional or an expert in the field of chronobiology Supplement A... Read More

Fasciculus of Lissauer

Definition noun A small bundle of fibers situated longitudinally in the white matter, at the entrance of the dorsal root... Read More

Zeitgeber

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

Liliopsida

Definition noun (plant taxonomy) A taxonomic class of the division Magnoliophyta comprised of lilies, grasses, palms,... Read More

Cellobiose

Definition noun plural: cellobioses cel·lo·bi·ose, ˌsɛləʊˈbaɪəʊz A disaccharide made up of two glucose... Read More

Progestogen

Definition noun, plural: progestogens A steroid hormone that is activated by the binding to the progesterone receptor, and... Read More

Monocot

Definition noun, plural: monocotyledons A group of flowering plants belonging to the class Liliopsida (or Monocotyledonae)... Read More

Monocotyledon

Definition noun, plural: monocotyledons A group of flowering plants belonging to the class Liliopsida (or Monocotyledonae)... Read More

Homeostatic Mechanisms and Cellular Communication

Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory... Read More

Autoantigen

Definition noun, plural: autoantigens An endogenous antigen that is recognized as nonself by the immune system, which should... 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

Regulation of Organic Metabolism, Growth and Energy Balance

Organic Metabolism Events of Absorptive and Post-absorptive States. The absorptive state is the period during which... Read More

Adenosine triphosphate

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

Actions of Caffeine in the Brain with Special Reference to Factors That Contribute to Its Widespread Use

IV. Actions of Caffeine on Brain Functions and BehaviorHaving discussed the molecular and neuronal actions of caffeine,... Read More

Hepatocyte

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

Sedge

sedge 1. (Science: botany) Any plant of the genus Carex, perennial, endogenous herbs, often growing in dense tufts in marshy... Read More

Bacteria

Bacteria Definition What are bacteria? What is the definition of bacteria in biology? Bacteria are defined as organisms... Read More

Palm

palm 1. (Science: anatomy) The inner and somewhat concave part of the hand between the bases of the fingers and the wrist.... Read More

Progesterone

Definition noun, plural: progesterones A progestogen hormone, with a chemical formula of C21H30O2, naturally produced in... Read More

Elicitor

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