Question

Explain the function of nematocysts in cnidarians.

a) Nematocysts help in locomotion of cnidarians.
b) They aid in sensory perception and response to the environment.
c) Nematocysts are involved in the defense and capturing prey by injecting toxins.
d) They assist in the digestion of food particles in the gastrovascular cavity.

Answer 1

Nematocysts are specialized cells found in cnidarians that serve multiple functions, primarily defense and prey capture through the injection of toxins.

Step-by-step explanation:

Nematocysts are specialized cells found in cnidarians that serve multiple functions. They are primarily involved in defense and capturing prey by injecting toxins. When the hair like projection on the cell surface of a cnidocyte is touched, nematocysts release a coiled thread, barb, and toxin, immobilizing or paralyzing the target. Nematocysts are not involved in locomotion, sensory perception, or the digestion of food particles in the gastrovascular cavity.