Question

Interstitial cells take part in

• A. Sealing the body layers
• B. Transfer of materials between epidermis and gastrodermis
• C. Replacement of old worn out cells
• D. Formation of neurosensory complex

Answer 1

The correct option is A Sealing the body layers

Interstitial cells occur in the spaces between the inner ends of cells of the epidermis and between outer ends of cells of gastrodermis are interstitial cells lying in groups. These are small, oval or round cells with a large nucleus. Interstitial cells form a growth zone just below the tentacles, from this zone all kinds of new cells arise which push out the old worn out cells, which are shed at the proximal and distal ends.

Interstitial cells form nematocysts and germ cells, they can also form epitheliomuscular cells, they renew all cells of the animal once every 45 days thus, they are totipotent.

So the correct answer is 'Sealing the body layers'.