Question

Discharged nematoblasts are replaced by new ones formed from

• A. Nematoblast initials
• B. Interstitial cells
• C. Amoebocytes
• D. Archaeocytes

Answer 1

The correct option is A Nematoblast initials

A nematocyst is not a cell because it is chitinous and non-living. A clear space arises in the cnidoblast, space grows and the cell secretes a double-walled chitinous capsule which has a lid or operculum. Nematocysts are specialized stinging cells specific to Coelenterates that act as organs of offense and defense. They are also called Cnidae and hence the coelenterates are also called Cnidarians. The cells that produce nematocysts are called nematoblasts.

So the correct answer is 'Nematoblast initials'.