71 results found

Search Results for: springer

Cell wall

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

Chlorophyll

Why are most plants green? Have you ever had the same question? Perhaps, you’ve been told that the plants are green... Read More

Hyaluronic acid

Definition noun A linear mucopolysaccharide that is a major component of tissues, such as connective, epithelial and neural... Read More

Arthropod

Arthropod Definition What is an arthropod? An arthropod is an invertebrate living organism characterized by the presence of... Read More

Between Necessity and Probability: Searching for the Definition and Origin of Life (Advances in Astrobiology and Biogeophysics)

Between Necessity and Probability: Searching for the Definition and Origin of Life (Advances in Astrobiology and... Read More

Interspecific competition

Interspecific Competition Definition In Biology, competition is defined as the process that occurs among species that have... Read More

Chemotroph

Chemotroph Definition A chemotroph refers to an organism that obtains energy mainly from carbon dioxide and from... Read More

Redox reaction

Redox Reaction Definition What are redox reactions? This is a common term in chemistry and biology. In chemistry, a redox... Read More

Facultative anaerobe

Facultative Anaerobe Definition What does facultative anaerobe mean? Facultative organisms are the most adaptable... Read More

Inherited traits

What are Inherited Traits? The characteristics or traits that are passed from parents to offspring are known as inherited... Read More

Facilitated diffusion

Facilitated diffusion is the transport of substances across a biological membrane from an area of higher concentration to an... Read More

Semilunar valve

The human heart structure consists of heart chambers (2 atria and 2 ventricles) that differ functionally from each other.... Read More

Gram-positive endospore-forming rods

Gram-Positive Endospore-Forming Rods Definition Gram-positive endospore-forming rods are a group of rod-shaped bacteria... Read More

Rachischisis

Definition noun The embryological failure of the neural tube to fuse or close completely thereby resulting in the vertebrae... Read More

Elaioplast

Definition noun, plural: elaioplasts (botany) A leucoplast that stores oil Supplement Plastids are organelles involved in... Read More

Melanophore

Definition noun, plural: melanophores A type of pigment cell that, in particular, produce and store... Read More

Symbiosis

Symbiosis Definition What is symbiosis? Symbiosis can be defined as any kind of relationship or interaction between two... Read More

Myoepithelial cell

Definition noun, plural: myoepithelial cells (1) (histology) A slender, spindle-shaped contractile cell forming the thin... Read More

Anthropophilia

Definition noun (parasitology) The preference of a parasite for human than other animals as host Supplement In parasitology,... Read More

Demecolcine

Definition noun (cytogenetics) A cytotoxic alkaloid isolated from Colchicum autumnale, and is used as an antineoplast... Read More

Microfilaria

Definition noun, plural: microfilariae The embryonic or early larval stage in the life cycle of certain parasitic nematodes... Read More

Chloroplast DNA

Definition noun plural: chloroplast DNAs DNA in the chloroplast that carries the code for proteins and RNAs essential to... Read More

Chromatophore

Definition noun, plural: chromatophores A pigment-containing cell or light-reflecting structure, especially found in fish,... Read More

Melanocyte

Definition noun, plural: melanocytes A type of pigment cell that, in particular, produce melanin, and occurs in the... Read More

Molecular neuroscience

Definition noun A branch of neuroscience that studies the nervous system in terms of its molecular biology, molecular... Read More

Proteinoplast

Definition noun, plural: proteinoplasts (botany) A leucoplast that stores and modifies protein Supplement Plastids are... Read More

Gerontoplast

Definition noun, plural: gerontoplasts A plastid that forms from chloroplast during senescence Supplement Plastids are... Read More

Localized peritonitis

Definition noun A type of peritonitis that is confined to a demarcated region of the peritoneal... Read More

Beer-Lambert law

Definition noun The principal law in spectrometry in which it states that the absorbance at a given wavelength of light is... Read More

Great Oxygenation Event

Great Oxygenation Event Definition The Great Oxygenation Event is defined as the surge of dioxygen (O2) levels in the... Read More

Mycoplankton

Definition noun The fungi or fungus-like component of plankton Supplement Plankton pertain to the small organisms that... Read More

Perisinusoidal space

Definition noun The plasma-filled extravascular space in the liver, between a hepatocyte and a liver sinusoid Supplement The... Read More

Histiocyte

Definition noun, plural: histiocytes A reticular connective tissue macrophage or a dendritic cell, derived from the bone... Read More

Nucleolar organizer region banding

Definition noun (cytogenetics) A chromosome banding method that employs silver staining to preferentially stain the... Read More

Vertical gene transfer

Definition noun (genetics) The transfer of genes from parents to offspring Supplement Gene transfer refers to the movement... Read More

Pinocytosis

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

Terminal hair

Definition noun The mature type of hair characterized by being pigmented, thicker, and with a larger diameter than the... Read More

Phosphodiester bond

Phosphodiester Bond Definition Phosphodiester bonds are the backbone of the strands of nucleic acid present in the life... Read More

Imprinting

What does imprinting mean? Have you watched the TV cartoon show “Tom and Jerry” with an episode of a duck and its... 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