17 results found

Search Results for: quaternary

Quaternary structure

Definition noun A structural level wherein several proteins (or polypeptide subunits) interact through non-covalent bonds to... Read More

Polypeptide

Polypeptide Definition Biology What are polypeptides? A polypeptide is defined as a polymer of amino acids joined together... Read More

Protein

Protein Definition Proteins are biomolecules comprised of amino acid residues joined together by peptide bonds.... Read More

Food chain

Everything is a cycle in life. The way organisms consume their food also follows a cycle. This is usually described as the... Read More

The Homo Species

Over the long term, it looked like Homo would supersede any ‘similar model’ of animals due to their unique tool using... Read More

Geological Periods

Precambrian Times (Most Ancient) All time before life existed, Earth was still a volatile environment, though the origins... Read More

Trophic level

In ecology, a trophic level pertains to a position in a food chain or ecological pyramid occupied by a group of organisms... Read More

Producer

Producer Definition Producers are organisms that can produce organic matter using an external energy source. They include... Read More

Primary structure

Definition noun (biochemistry) A structure of a biological molecule in which there is a precise sequence or order of... Read More

Secondary structure

Definition noun A structure of a biological molecule characterized by the local folding within the biopolymer as a result... Read More

The consequences of antibiotic use in horticulture

Leading articles Frederick R. Falkiner* Department of Clinical Microbiology, Trinity College, Dublin; Central Pathology... Read More

Human

Human Definition A human is a bipedal hominin characterized by having a higher and vertical forehead compared with earlier... Read More

Deactivation

Definition noun The process of making inactive or the state of becoming less or not active anymore Supplement Deactivation... Read More

Eubacteria

Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single... Read More

Ecosystem

Ecosystem Definition An ecosystem is a system consisting of biotic and abiotic components that function together as a unit.... Read More

Structure

Definition noun, plural: structures (1) (biology) An arrangement or organization of parts to form an organ, system, or... Read More

Hydrophilic

Hydrophilic Definition What does a hydrophile (or hydrophilic molecule) mean? If a molecule is “water-loving”, it is... Read More