Question

What is the colonial organism having nematoblasts and blind sac organisation?

Answer 1

Nematocysts are particular stinging cells explicit to Coelenterates that go about as organs of offence and resistance. They are likewise called Cnidae and consequently, the coelenterates are additionally called Cnidarians. The phones that create nematocysts are called nematoblasts.

Structure:

Nematocysts are cell organelles found in particular cells called cnidocytes or cnidoblasts, which are altered epidermal interstitial cells. A Cnidoblast is an oval or adjusted cell with an obvious core lying on the basal side. Inside the cnidoblast is available an oval or pyriform sac or bladder that is loaded up with a poison called hypnotoxin, which is a blend of proteins and phenols. The external end of the case is invaginated into a long, empty and cylindrical fibre or string tube, looped like a watch-spring inside the sac itself. The base of the string tube is swollen to frame a butt, which conveys three extensive spines, called thorns or stylets and three winding lines of moment spines. The bladder is secured on the best by a top or operculum, close which lies a hair-like process, the cnidocil that demonstrations like a trigger for the release of the string tube. The cytoplasm of cnidoblast may contain contractile muscle fibrils and a controlling string at the base called rope, which keeps the nematocyst from being tossed out of the cell. Generally, cnidoblast has cell organelles like a typical cell and at a base, it is appended to an epithelial-muscle cell.