26 results found

Search Results for: apical complex

Apical complex

Definition noun An organ complex of the Apicomplexa that appears as a conical structures on the tapered end (or the apical... Read More

Plant Tissues

Plants are composed of three major organ groups: roots, stems, and leaves. As we know from other areas of biology, these... Read More

Apicomplexa

Definition noun A phylum comprised of protozoans characterized by having a special organelle called an apical complex, and... Read More

Protist

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

Tissue

Tissue Definition What is tissue in the body? The body tissue is an aggregation of cells that function together and have a... Read More

Merozoite

Definition noun, plural: merozoites A cell formed during the asexual division of the schizont; a stage in the life cycle of... Read More

Trophozoite

Definition noun, plural: trophozoites The active, amoeboid cell form that occurs during the feeding stage in the life cycle... Read More

Apocrine gland

The human body is a complex assemblage of many different organs, systems, glands, bones, and tissues. Weighing any one over... Read More

Embryo

An embryo refers to the early developmental stage of a multicellular organism that follows fertilization. This stage... Read More

Turgor pressure

In biology, turgor pressure pertains to the pressure that is exerted by the fluid (e.g. water) against the cell wall. It is... Read More

Tight junction

What are tight junctions? Tight junctions are the intercellular barrier between two neighboring endothelial and epithelial... Read More

Growth

Growth Definition What is growth in biology? Growth is the irreversible increase of an organism’s size over a given... Read More

Oocyst

Definition noun, plural: oocysts A resistant, thick-walled spore containing the zygote Supplement Apicomplexa is a phylum... Read More

Sporozoa

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

Sporozoite

Definition noun, plural: sporozoites A minute, elongated cell that arise from the repeated division of the oocyst during... Read More

Tachyzoite

Definition noun, plural: tachyzoites A relatively faster-growing, actively multiplying, and invasive cell type of certain... Read More

Bradyzoite

Definition noun, plural: bradyzoites A slowly multiplying cell form in the life cycle of certain Apicomplexans, such as... Read More

Sporozoan

Definition noun, plural: sporozoans Any of the numerous protozoans of the phylum (or class) Sporozoa, generally... Read More

Xylem

Xylem Definition Xylem is defined as a plant tissue that transfers water and nutrients from roots to all over the plant... 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

Cilium

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

Asexual reproduction

Asexual Reproduction Definition What is asexual reproduction? Asexual reproduction is a type of reproduction that does not... Read More

The consequences of antibiotic use in horticulture

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

Rhizome

The rhizome is derived from the Greek word rhizoma, meaning "a bunch of roots". Usually, rhizomes are confused with roots;... Read More

Immune response

Immune Response Definition An immune response is defined as the reaction of the body in response to the presence of a... Read More

Plant

Plant Definition A plant refers to any of the eukaryotic organisms of the biological kingdom Plantae, characterized by... Read More