52 results found

Search Results for: obligate

Obligate aerobe

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

Obligate parasite

Parasitism is a form of symbiosis that occurs between a parasite and its host. The parasite is the organism that generally... Read More

Obligate anaerobe

Definition noun An anaerobe that does not require oxygen and lives only in anaerobic environment. Supplement Exposure to... Read More

Obligate

Definition adjective (general) Compulsory; restricted to a set of parameters or conditions; having no alternative system or... Read More

Facultative anaerobe

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

Aerotolerant

Aerotolerant Definition The term "aerotolerant" pertains to an organism that does not require oxygen for growth but can... Read More

Anaerobic bacteria

Bacteria are classified according to the need for oxygen to survive and grow.   For example, aerobic bacteria are bacteria... Read More

Parthenogenesis

To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More

Parasitism

Organisms depend on different sources of food to survive. Larger organisms like plants make their own food (autotrophs) and... Read More

Aerobic bacteria

Aerobic Bacteria Definition What does aerobic mean in biology? As the name suggests, 'aerobe' in biology means organisms... Read More

Anaerobic

As largely known are the subset of biological processes that are directly correlated to the ‘usage of molecular oxygen’,... Read More

Apomixis

Apomixis Definition Just like any other organism, the process of reproduction is pivotal to the life cycle of plants. There... Read More

Thermophile

Thermophiles Definition What are thermophiles? Let us first understand the literal meaning of the word ‘thermophile’.... Read More

Fermentation

Fermentation Definition What is fermentation? Fermentation is the breaking down of sugar molecules into simpler compounds... Read More

Bacteria

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

Symbiosis

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

Parasite

Definition noun, plural: parasites An organism that obtains nourishment and shelter on another... Read More

Mutualism

Mutualism Definition What is mutualism? In biology and ecology, a mutualism is a form of symbiosis that is characterized by... Read More

Obligate mutualism

Definition noun A type of mutualism in which the species involved are in close proximity and interdependent with one... Read More

Protist

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

Hyperthermophile

Definition noun, plural: hyperthermophiles An organism that is adapted to live and thrive at temperature as high as 80°C... Read More

Cell theory

What Is Cell Theory? Biological cell theory explains the idea of organismal constitution, structure, and function. It... Read More

Mutualistic symbiosis

Mutualistic Symbiosis Definition In order to understand what a mutualistic symbiotic relationship means, we will break down... Read More

Biological Viruses

The prime directive of all organisms is to reproduce and survive and this also applies to viruses. Apparently, viruses are... Read More

Community Patterns

By: Maria Victoria Gonzaga In the previous lesson, we learned what a population is, its attributes, and processes... Read More

Trematode

Definition noun, plural: trematodes A common name for the species belonging to the Class Trematoda, which is characterized... Read More

Barophile

Definition noun, plural: barophiles An organism that grows in high-pressure environments Supplement A barophile is an... Read More

Host cell

Host Cells Definition What is a host cell? A host cell is a living cell that serves as a shelter and a food source to the... Read More

Trematoda

Definition noun (taxonomy) A class of the Phylum Platyhelminthes that is comprised of parasitic flukes Supplement The phylum... Read More

Omnivore

Organisms need to eat food in order to gain energy and survive in the ecosystem. Often, living things are categorized by how... Read More

Lycinibacillus fusiformis

Definition noun A long rod-shaped obligate aerobe organism that is able to utilize oxygen to metabolize numerous sugars... Read More

New Zealand’s Unique Flora

By: Maria Victoria Gonzaga In the previous lesson, we've come to know some of the most fascinating endemic... Read More

Virus

Definition noun, plural: viruses A submicroscopic infectious agent that is unable to grow or reproduce outside a host... Read More

Cell Biology

The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas... Read More

Coccidia

Coccidia (singular: coccidium) are sporozoans that live as parasites of the digestive tracts of certain animals. The... Read More

Toxoplasma gondii

Definition noun A parasitic protozoon of the taxonomic family Sarcocystidae that causes toxoplasmosis Supplement Toxoplasma... Read More

Eubacteria

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

Alkaliphile

Definition noun, plural: alkaliphiles An organism that can live and thrive in an alkaline environment Supplement An... Read More

Proteobacteria

Definition noun (taxonomy) A phylum of the domain Bacteria that includes medically and scientifically important species such... Read More

Clostridium tetani

Definition noun An obligate anaerobic rod shaped and gram-positive bacterium which appears to looks like a drumstick that is... Read More