138 results found

Search Results for: stress

Mitochondrial DNA – hallmark of psychological stress

We often hear that stress can be unsettling as it could make us ill when it becomes chronic and overwhelming. However, is... Read More

Abiotic stress

'''abiotic stress (Science: botany) Nonliving environmental factors (such as drought, extreme cold or heat, high winds) that... Read More

Biotic stress

Biotic stress (Science: biology) Living organisms which can harm plants, such as viruses, fungi, bacteria, and harmful... Read More

Shear stress

shear stress The force acting in shear flow expressed per unit area; units in the cGS system:... Read More

Stress

stress 1. Forcibly exerted influence, pressure. In dentistry, the pressure of the upper teeth against the lower in... Read More

Hyperosmotic

Hyperosmotic Definition The word Hyperosmotic is derived from two Greek words: 'hyper', meaning “excess” and 'osmos',... Read More

Accent

Accent 1. A superior force of voice or of articulative effort upon some particular syllable of a word or a phrase,... Read More

Cell wall

The cell is the structural, functional, and biological unit of all organisms. It is a membrane-bound structure containing... Read More

Obligate aerobe

Before we define obligate aerobes, let us first understand and define aerobic organisms. Aerobic organisms are those that... Read More

Melatonin

Definition noun, plural: melatonin or melatonins The hormone involved in the regulation of several physiological mechanisms... Read More

Protist

Protist Definition What is a protist? All protists are eukaryotes, i.e. organisms with a nucleus. However, they are... Read More

Plant Water Regulation

A plant requires water as an essential ingredient of photolysis, the photochemical stage of photosynthesis where water is... Read More

Reactive oxygen species

Definition noun Chemically reactive molecules and ions of oxygen with an unpaired electron Supplement Reactive oxygen... Read More

Cryptomonad

Definition noun, plural: cryptomonads Any of the species belonging to Phylum Cryptophyta, and characterized by being aquatic... Read More

Catabolism

Catabolism Definition Catabolism is the branch of the metabolic process that breaks down complex, big molecules into... Read More

Physiological adaptation

If we look over evolutionary history, we find that it’s neither the most genius and intelligent nor the strongest and the... Read More

Carbohydrate

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

Involuntary muscle

A muscle act typically either under the control of the will or without conscious control. Muscles that can be controlled at... Read More

Catalase

Definition noun, plural: catalases An enzyme that catalyzes the decomposition of hydrogen peroxide into oxygen and... Read More

Viscosity

Viscosity refers to the state or condition of being viscous. It is measured as a physical property of a fluid. As a physical... Read More

Adrenaline

A catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve... Read More

Endoplasmic reticulum

Definition noun plural: endoplasmic reticula (cell biology) A membrane-bound organelle that occurs as labyrinthine,... Read More

Sugar

Definition noun plural: sugars sug·ar, ˈʃʊɡɚ (1) Any monosaccharide or disaccharide, used especially by organisms... Read More

Milk yields affected by music tempo

Dairy cows produce more milk when listening to REM's 'Everybody Hurts' or Beethoven's 'Pastoral Symphony' than when... Read More

Sugar Homeostasis

Blood Sugar Regulation As described in Cell Biology tutorials, the body requires volumes of glucose in order to create ATP.... Read More

Harris lines

Definition noun Lines near the end of a juvenile long bone (e.g. tibia), detected through radiographs (e.g. by X-ray), and... Read More

Fecundity

Fecundity Definition The meaning of fecundity is the reproductive rate (fecundity rate) or the performance of an individual... Read More

Unit

unit 1. A single thing or person. 2. (Science: mathematics) The least whole number; one. Units are the integral parts of any... Read More

The biology of how the brain forgets

Our brain tends to forget things that we wish we would always remember. And yet, it cannot forget certain things we wish... Read More

Denaturation

Denaturation Definition In biochemistry, denaturation is defined as a process in which a molecular structure deviates from... Read More

Lacuna

Definition of Lacuna What is lacuna? The word "lacuna" (noun, plural: lacunae) is derived from the Latin word- 'lacus',... Read More

Anchoring junction

Definition noun, plural: tight junctions A type of cell junction that is attached to components of the extracellular... Read More

Hyaline cartilage

Hyaline Cartilage Definition Before we define hyaline cartilage, let us understand what cartilage is. What is cartilage? Is... Read More

Macula adherens

Definition noun A type of anchoring junction between neighboring cells forming a plaquelike site on the cell... Read More

Hemidesmosome

Definition noun, plural: hemidesmosomes A type of anchoring junction between neighboring cells forming a rivet-like links... Read More

Senescence

Senescence Definition Senescence is defined as biological aging. In cell biology, it refers to the cell wherein it is no... Read More

Cell immobilization

Definition noun (biotechnology) A process wherein cells (animal or plant cells) are fixed in a suitable matrix and are used... Read More

Turgor pressure

In biology, turgor pressure definition pertains to the pressure that is exerted by the fluid (e.g. water) against the cell... Read More

Spermiogenesis

Spermiogenesis definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More

Halophile

Definition noun, plural: halophiles An organism that thrives in an environment of high salinity Supplement A halophile... Read More