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Animal Kingdom

Question
CBSEENBI11025999
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Which of the following cell type is capable of giving rise to other cell types in sponges ?

  • Thesocytes

  • Pinacocytes

  • Cnidocytes

  • Archaeocytes

Solution

D.

Archaeocytes

Archaeocytes are the totipotent cells, which provide great regenerating power to sponges. Sex cells such as sperm and ova cells arise from undifferentiated archaeocytes.

Thesocytes store food granules.

Pinacocytes are the polygonal flat cells present as outer layer of cells, called pinacoderm lining the spongocoel or body cavity in Leucosolenia.

Cnidocytes occur in entire epidermis except that of basal disc and are found only in cnidarians. Cnidocytes are spherical or oval cells.

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