Nematocyte?

Question

What is the function of a nematocyte?
A.) Prey capture
B.) Sensory perception
C.) Locomotion
D.) Digestion

*please dont guess

Answer 1

A.) Prey capture

nematocyte
(= cnidoblast)
Stinging cells found in Hydra , used for capturing prey and for defence. There are four major types, containing different sorts of nematocysts: stenoteles (60%), desmonemes, holotrichous isorhizas, and atrichous isorhizas. They differentiate from interstitial cells and are almost all found in the tentacles.

Answer 2

ans:A (prey capture)

They can be divided into the following groups:

Penetrant: A harpoon-like structure used to penetrate.

Glutinant: Sticky surfaces used to stick to prey.

Volvent: A lasso-like string that is fired at prey and wraps itself around a cellular projection on the prey.

Ptychocyst: A special type of nematocyte found on burrowing (tube) anemones, which help create the tube in which the animal lives

Answer 3

It is prey capture.

Cnidocytes are single cells, each containing a subcellular organelle called a cnidocyst. The cnidocysts are composed of a hollow coiled thread-like structure attached to the bulb-shaped nematocyst capsule body. The externally-oriented side of a cnidocyte cell also has a hair-like trigger on it, called the cnidocil. When the trigger is activated the cell "fires" - the shaft of the cnidocyst penetrates the target and the hollow thread is everted into the target organism body. This discharge is one of the fastest biological processes, takes no more than a few microseconds and reaches accelerations of about 40,000g.Following penetration, the toxic content of the nematocyst is injected into the target organism. The rapid activity of the injected neurotoxins serves to immediately paralyze the mobile prey, thus allowing the sessile cnidarian to devour it.

Answer 4

A) Prey Capture

Answer 5

The function of a nematocyte is:
A.) Prey capture. (and defense)

Answer 6

A) They are used to sting and immobilize prey