46 results found

Search Results for: prokaryote

Prokaryote

Prokaryote refers to any of the group of living organisms primarily characterized by the lack of a true nucleus and other... Read More

Cell

A biological cell is a membrane-bound structure that occurs as a functional independent unit of life (such as in unicellular... Read More

Eukaryote

Eukaryote refers to any of the single-celled or multicellular organisms whose cell contains a distinct, membrane-bound... Read More

Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Prokaryotic cell

Definition noun, plural: prokaryotic cells (1) The cell of a prokaryote, i.e. an organism whose cell generally lacks a true... Read More

Red algae

Red Algae Definition The red algae belong to the phylum Rhodophyta, which literally was derived from the Greek word... Read More

Charophyta

Charophyta is a taxonomic group (a phylum) comprised of green algae that live predominantly in freshwater habitats. Members... Read More

Nucleoid

Definition noun plural: nucleoids nu·cle·oid, ˈnjuːklɪˌɔɪd The portion within a prokaryotic cell where the... Read More

Euchromatin

Definition noun A slightly packed or partially condensed form of chromatin that contains structural genes and is usually... Read More

Microbe

Microbe Definition What is a microbe? How do we define microbes?  Microbes refer to microorganisms that cannot be seen by... Read More

Oxidative phosphorylation

Definition noun A metabolic pathway that generates ATP from ADP through phosphorylation that derives the energy from the... Read More

Unicellular

Unicellular organisms are organisms consisting of one cell only that performs all vital functions including metabolism,... Read More

Ribosomal ribonucleic acid

Definition noun plural: ribosomal ribonucleic acids ri•bo•so•mal ri•bo•nu•cle•ic ac•id, ˈraɪ... Read More

Living things

Living Things Definition A living thing pertains to any organism or a life form that possesses or shows the characteristics... Read More

Methanotroph

Definition noun, plural: methanotrophs An organism that metabolize methane as a source of carbon and... Read More

Glycosidase

Definition noun, plural: glycosidases (biochemistry) An enzyme catalyzing the hydrolysis of a... Read More

DNA polymerase

Definition noun, plural: DNA polymerases (molecular biology) An enzyme assisting in DNA replication Supplement Polymerases... Read More

DNA polymerase I

Definition noun The first known DNA polymerase, encoded by polA gene, and is involved in DNA replication in... Read More

DNA polymerase II

Definition noun A DNA polymerase involved in DNA replication in prokaryotes, is encoded by polB gene, and composed of 783... Read More

Endosymbiotic theory

A eukaryotic cell is distinct from a prokaryotic cell by the presence of membrane-bound cellular structures called... Read More

Nucleus

In cell biology, the nucleus is the large, membrane-bounded organelle that contains the genetic material in the form of... Read More

Magnetosome

Definition noun, plural: magnetosomes A membranous cytoplasmic structure containing mineral crystals that enable certain... Read More

Genome

Genome Definition What is a genome? As defined in biology, a genome is a complete set of deoxyribonucleic acid (DNA) within... Read More

Bacterioplankton

Definition noun The bacterial component of plankton of aquatic ecosystems Supplement Plankton pertain to the small organisms... Read More

Ecosystem

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

Messenger ribonucleic acid

Definition noun plural: messenger ribonucleic acids mes•sen•ger ri•bo•nu•cle•ic ac•id, ˈmɛ.sɪn.dʒəɹ... Read More

Biological Cell Introduction

It only takes one biological cell to create an organism. In fact, there are countless species of single-celled organisms,... Read More

Eukaryotic cell

Definition noun, plural: eukaryotic cells The cell of a eukaryote, i.e. an organism that possesses a membrane-bound... Read More

Thermophile

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

Algae

Algae are photosynthetic organisms that possess photosynthetic pigments such as chlorophyll. However, they lack true roots,... Read More

Glycosylation

Definition noun A biochemical process where a glycan attaches to a protein, a lipid, or other organic molecule, especially... Read More

Phylogeny

Phylogeny refers to the evolutionary history of the development of a species or of a taxonomic group of organisms. The... Read More

Archaea

Archaea is a group of prokaryotic life forms distinct from bacteria forming a separate domain of life. They possess... Read More

Cyanobacteria

Cyanobacteria Definition Cyanobacteria is a group of photosynthetic bacteria widely distributed in various aquatic habitats... Read More

Protein synthesis

Protein synthesis is the process of creating protein molecules. In biological systems, it involves amino acid synthesis,... Read More

Green algae

Green Algae Definition Green algae (singular: green alga) are photosynthetic algae that are characterized by having... Read More

Genetic material

Genetic Material Definition What is genetic material? Genetic material is the hereditary substance in the cell. It carries... Read More

Chlorophyta

Chlorophyta Definition Chlorophyta is a taxonomic group (a phylum) comprised of green algae that live in marine habitats.... 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

Secretion

Definition noun, plural: secretions (1) The physiological process of synthesizing and eventually releasing substances from... Read More