Table of Contents
What is gastrovascular cavity Class 11?
Hint: Gastrovascular cavity is an organ of digestion and circulation in Coelenterates (hydra, jellyfish, etc.) and Platyhelminthes (tapeworm, liver fluke, etc.). In coelenterates, the central gastro-vascular cavity has a single opening i.e. mouth, and is known as coelenteron.
What is the benefit of a gastrovascular cavity?
The gastrovascular cavity aids in the circulation of oxygen and wastes because circulatory, respiratory, and excretory organs are lacking (Bouillon et al., 2006). In addition, digestion and circulation of nutrients are enhanced by body movement and by the beating of flagella lining the gastroderm (Hyman, 1940).
Which body cavity is known as gastrovascular cavity?
digestive cavity
digestive cavity is called a gastrovascular cavity, because in many animals it has vessel-like branches that convey the contents to all parts of the body.
What are the two functions of gastrovascular cavity in platyhelminthes?
The gastrovascular cavity is a structure found in primitive animal phyla. It is responsible for both the digestion of food and the transport of nutrients throughout the body.
What is the function of Nematocyst?
Nematocysts or cnidocysts represent the common feature of all cnidarians. They are large organelles produced from the Golgi apparatus as a secretory product within a specialized cell, the nematocyte or cnidocyte. Nematocysts are predominantly used for prey capture and defense, but also for locomotion.
What is the normal function of the digestive system?
The digestive system is responsible for taking whole foods and turning them into energy and nutrients to allow the body to function, grow, and repair itself.
What is the function of gastrovascular cavity in cnidarians?
The gastrovascular cavity is mainly involved in the digestion and circulation. The gastrovascular cavity is the primary organ of digestion in two major animal phyla: the Coelenterates or cnidarians (jellyfish, corals and flatworms).
What is the dual function of the gastrovascular cavity in a sea anemone?
Thus, this cavity serves both digestive and circulatory functions. Cnidarian cells exchange oxygen and carbon dioxide by diffusion between cells in the epidermis and water in the environment, and between cells in the gastrodermis and water in the gastrovascular cavity.
What is the function of gastrovascular cavity in Hydra?
The gastrovascular cavity is the primary organ of digestion and circulation in two major animal phyla: the Coelenterates or cnidarians (including jellyfish and corals) and Platyhelminthes (flatworms). The cavity may be extensively branched into a system of canals.
What is the function of Mesoglea?
The mesoglea serves as an internal skeleton, supporting the body. Its elastic properties help restore the shape after it is deformed by the contraction of muscles.
What is the function of the 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.