What is the function of Colloblast cells?
supplied with adhesive cells called colloblasts, which are found only among ctenophores. These cells produce a sticky secretion, to which prey organisms adhere on contact.
What are colloblasts or lasso cells?
lasso cell (colloblast) A type of cell in comb jellies (phylum Ctenophora) that is similar to the thread cells of cnidarians. Lasso cells are embedded in the tentacles of the organism. Each has two protruding filaments, one straight and one spiralled, with adhesive heads used to catch prey.
What is the other name of Colloblast?
Also called glue cell.
Do ctenophores have cnidocytes?
Indeed, the Ctenophores and the Cnidaria were formerly grouped together as Coelenterata. However, despite their appearance, ctenophores are zoologically not true jellyfish, not least because they lack the characteristic cnidocytes (specialized cells that carry stinging organelles) that characterize the Cnidaria.
What is the difference between Cnidoblast and Colloblast?
Cnidoblast is the specialized cells that helps in the prey capturing in case of cnidarians. Cnidoblast forms the lining of ectodermal cells of the cnidarians. Colloblast cells helps in the food capturing in case of the ctenophora. These cells stick to their prey.
What is the function of Cnidocytes?
Cnidocytes (‘stinging cells’) are specialized cells that define the phylum Cnidaria (sea anemones, jellyfish, corals and hydras). They contain an “explosive” organelle called cnidocyst that acts as a 600 million-years-old microscopic injection system and is important for prey capture and anti-predator defense.
What does Ctene mean?
locomotor organ
Definitions of ctene. a locomotor organ consisting of a row of strong cilia whose bases are fused. synonyms: comb-plate. type of: organ.
What is a Ctene?
Definitions of ctene. a locomotor organ consisting of a row of strong cilia whose bases are fused. synonyms: comb-plate. type of: organ. a fully differentiated structural and functional unit in an animal that is specialized for some particular function.
Do ctenophores have colloblasts?
Ctenophores (comb jellies) are unified by their possession of a novel cell type: the colloblast, an adhesive cell found only in the tentacles.
What is the function of cnidocytes?
Is cnidoblast and cnidocyte same?
A cnidocyte (also known as a cnidoblast or nematocyte) is an explosive cell containing one giant secretory organelle called a cnidocyst (also known as a cnida (plural cnidae) or nematocyst) that can deliver a sting to other organisms.
What is the difference between a cnida and a cnidocyte?
A Cnidocyte is also called as a cnidoblast or a nematocyte. A cnidocyte is an explosive cell having within it a giant secretory organelle (organ) called cnida which is a characteristic of the phylum Cnidaria. A Nematocyst is a specialized sub-cellular organelle (part of the cell) present in cnidocyte.