142 results found

Search Results for: constant

Dissociation constant

Definition noun (1) A mathematical constant that describes the tendency of a large molecule to dissociate reversibly into... Read More

Association constant

Definition noun A mathematical constant that describes the bonding affinity between two molecules at... Read More

First-order kinetics

What is a First-Order Kinetics (First-Order Reaction)? First-order kinetics refers to a reaction wherein the overall rate... Read More

Equilibrium constant

Definition noun The ratio in which the product of the concentrations of the products divided by the product of the... Read More

Immunoglobulin

Immunoglobulin Definition An immunoglobulin is a globulin molecule produced by the immune cells, for the body's defense... Read More

Vmax

Vmax Definition Vmax is the maximal reaction rate or velocity of an enzymatically catalyzed reaction when the enzyme is... Read More

Ki

Definition (genetics) Gene knock-in, as in genetic engineering method (chemistry) A symbol for the dissociation constant of... Read More

Keq

Definition noun (1) The equilibrium constant for a reversible chemical reaction. (2) The ratio depicting the... Read More

Equilibrium

Equilibrium Definition In Biology Equilibrium refers to the state of balance and stability. In biology, equilibrium is... Read More

Kd

Definition noun (biochemistry) An equilibrium constant for dissociation (biochemistry) An abbreviation for kilodalton,... Read More

Homeostatic Mechanisms and Cellular Communication

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

Muscle

Muscle cells are specialized to generate force and movement. There are three types of muscle tissue: (1) skeletal muscle,... Read More

Generation of resting membrane potential

Stephen H. Wright Department of Physiology, College of Medicine, University of Arizona, Tucson, Arizona 85724... Read More

Isotonic

Isotonic Definition What does isotonic mean? The term "isotonic" is used in physiology, anatomy, and physical chemistry.... Read More

Homeostasis

Homeostasis is the tendency not to stray from the range of favorable or ideal internal conditions. Such conditions must be... 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

Independent variable

Independent Variable Definition To define an independent variable, let us first understand what a variable is. The word... Read More

Atom

In the enchanting tapestry of life, the smallest of heroes and a celestial protagonist emerges—'the atom'. With grace and... Read More

Stable

stable 1. Firmly established; not easily moved, shaken, or overthrown; fixed; as, a stable government. In this region of... Read More

Tolerance

tolerance 1. The ability to endure unusually large doses of a drug or toxin. 2. Acquired drug tolerance, a decreasing... Read More

Homogenous

What is homogenous? What does homogenous mean? The word homogenous has been derived from two Greek words that are... Read More

Residual volume

Residual volume is a term that is most often seen in lung physiology where it is defined as the amount of air remaining in... 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

Ventilation

Ventilation Definition Often when persons think of ventilation, they think of getting clean or enough air into a room. This... Read More

Kcat

Definition noun Kcat (1) First-order rate constant, or the catalytic constant is a measure of Vmax / Et expressed in units... Read More

Pinocytosis

Pinocytosis Definition What is pinocytosis?  Pinocytosis is the ingestion of extracellular fluids, i.e. the fluid... Read More

Vant hoffs law

van't Hoff's law In stereochemistry, all optically active substances have one or more multivalent atoms united to four... Read More

Control variable

Definition noun, plural: control variables A variable that remains unchanged or held constant to prevent its effects on... Read More

Constitutive enzyme

Definition noun, plural: constitutive enzymes The enzyme synthesized at a relatively constant level. Supplement These... Read More

Selectively-permeable membrane

Selectively Permeable Membrane Definition We can define selectively permeable membranes as those that are selectively... Read More

Controlled variable

Definition noun, plural: control variables A variable that remains unchanged or held constant to prevent its effects on the... Read More

Survival of the fittest

When we talk about evolutionary processes, the usage of the phrase "Survival of the fittest" has been very common in... Read More

Lights’ Effect on Growth

Plants are the primary producers of energy in any ecosystem, meaning that they bring in new energy to it which supports... Read More

The FIFTH MIRACLE: The Search for the Origin and Meaning of Life

 The FIFTH MIRACLE: The Search for the Origin and Meaning of Life    ... Read More

Macrophytes

Introduction    Examples of Macrophytes. (Source: Canada's AquaticEnvironments) ... Read More

Dead Man Walking

Dead Man Walking: Wade Davis and the Secret of the Zombie Poison By Patrick D. Hahn Accepted on September 4, 2007 Twenty... Read More

Alloparenting-What Is It?

“Alloparenting—What Is It?” Sonja G. Rosas 13 September 2007 An Introduction To Alloparenting Every gregarious... Read More

An introduction to Homeostasis

Researched and Written by Jonjo Minns Submitted to biologyonline.com on February 25, 2009. Published in biologyonline.com... Read More

Substance

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

Life

Life Definition Life is a characteristic of a living organism that distinguishes the latter from a dead organism or a... Read More