71 results found

Search Results for: motile

Cilium

Cilia Definition Cilia are hair-like structures found on the surface of many types of cells, including some mammalian... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Spermiogenesis

Spermiogenesis Definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More

Protist

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

Spermatogenesis

Spermatogenesis Definition Spermatogenesis is the biological process of producing sperm cells. It occurs in the male gonad... Read More

Non-living thing

Non-living Thing Definition A non-living thing in biology means any form without a life, such as an inanimate body or... Read More

Spermatid

Spermatid Definition What are spermatids? Let us define spermatid and understand its role in reproduction. A spermatid... Read More

Ookinete

Definition noun, plural: ookinetes The motile zygote formed by the fertilization of microgamete and macrogamete of certain... Read More

Chemotaxis

Definition noun The directional movement of an organism or a living motile cell in response to certain diffusible chemicals... Read More

Eukaryote

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

Kingdom Animalia

Kingdom Animalia Definition Each person can say that they know of or can name at least one animal. However, do people know... 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

Green algae

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

Spermiation

Definition noun A process in the final stage of spermatogenesis by Sertoli cells release the elongated, non-motile... Read More

Golden algae

In phycology, the golden algae are algal species that are found mostly in freshwater. They are also called the chrysophytes.... Read More

Sporozoa

Definition noun A protozoan phylum of the Kingdom Protista of the old five kingdom scheme of classification, and includes... Read More

Sertoli cell

Definition noun, plural: Sertoli cells Any of the elongated cells located in the seminiferous tubules of the testis, and... Read More

Algae

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

Protozoology

Definition noun A branch of biology that studies protozoa, which are eucharyotes characterized by being single-celled, most... Read More

Agar

What Is Agar? Agar, also called agar agar, is a natural gelling agent derived from seaweed (specifically algae belonging to... Read More

Protozoa

Definition noun, singular: protozoon Eukaryotic organisms belonging to a group characterized for being single-celled, most... Read More

Chemokinesis

Definition noun A behavioral response of a cell or an organism to a soluble chemical that leads to random or directionally... Read More

Motility

Definition noun (1) The ability to move actively and on instinct, usually consuming energy in the process. (2) The... Read More

Chlorophyta

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

Reproduction

Reproduction Definition Reproduction is a biological phenomenon of producing offspring/s. i.e. more of its kind. Depending... Read More

Animal

Animal Definition An animal (plural: animals) refers to any of the eukaryotic multicellular organisms of the biological... Read More

Enterococcus faecalis

Definition Non-motile, gram-positive, facultatively anaerobic, microbial species that normally dwells in the... Read More

Brevibacillus brevis

Definition noun A motile aerobic ellipsoidal spore forming rod organisms involved in gramicidin production an antimicrobial... Read More

Serratia marcescens

Definition Noun A gram-negative motile and non-endospore forming rod bacterium associated with hospital acquired infections... Read More

Kelp

The swaying and winding of kelp in the ocean currents has an entrancing, hypnotic quality that would be the envy of the... Read More

Enterobacter aerogenes

Definition Noun A gram-negative rod shaped motile and encapsulated bacterium and have peritrichous flagella that surrounds... Read More

Moraxella bovis

Definition Noun A gram-negative non-motile coccobacillus and highly opportunistic aerobic bacterium involved in Bovine... Read More

Proteobacteria

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

Chemotropism

Definition noun Growth or movement response of a cell or an organism to chemicals Supplement In general, tropism is an... Read More

Magnetotaxis

Definition noun A form of taxis characterized by a directional movement of an organism in response to a magnetic... Read More

Brown algae

Brown Algae Definition Brown algae are algal species characterized by being multicellular and having a brown or... 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

Nitrifying bacterium

Definition noun, plural: nitrifying bacteria A bacterium that is capable of converting ammonium into... Read More

Simple squamous epithelium

Simple Squamous Epithelium Definition Simple squamous epithelium, also known as simple squamous epithelial tissue or... Read More