Dictionary > Trophozoite

Trophozoite

Definition
noun, plural: trophozoites
The active, amoeboid cell form that occurs during the feeding stage in the life cycle of an apicomplexann
Supplement
Apicomplexa is a phylum comprised of protozoans characterized by having a special organelle called an apical complex, and most of them are single-celled, parasitic, and spore-forming. They are intracellular parasites. Their life cycle is comprised of stages where each has a particular cellular variety. Nevertheless, not all members have all the various life stages. An example of an apicomplexan with the trophozoite cell type is the Plasmodium species, the causative agent of malaria. Plasmodium species use two hosts (human and Anopheles mosquito) to complete its complex life cycle. In the human host, the sporozoites injected by the mosquito during a blood meal are circulated by the bloodstream. When they reach the liver cells of the human host they transform into trophozoites. The trophozoite is the active, amoeboid cell form of the Plasmodium. It loses its apical complex and surface coat. The tropozoites particularly invade the vacuole of the hepatocyte where they will go through schizogonic development. Their nucleus will undergo multiple divisions while their cell size increases. They develop and differentiate into merozoites.
See also:


You will also like...

Genetic engineering
Genetic Engineering Advantages & Disadvantages

This tutorial presents the benefits and the possible adverse eventualities of genetic engineering. Know more about this ..

Balanced Diet
A Balanced Diet – Minerals and Proteins

Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..

Biological Energy
ATP & ADP – Biological Energy

ATP is the energy source that is typically used by an organism in its daily activities. The name is based on its structu..

Flowers and tiny fruits of the pomegranate plant
Fruits, Flowers, and Seeds

This tutorial deals with the structure and function of flowers, fruits, and seeds. Also included here are the types of f..

Chromosome Mutations
Chromosome Mutations

Mutations can also influence the phenotype of an organism. This tutorial looks at the effects of chromosomal mutations, ..

Freshwater Ecology
Freshwater Ecology

Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..