Multiple choice

Which of the following is responsible for maintaining the size and structure of a sponge?

  1. Mesohyl

  2. Myocytes

  3. Porocytes

  4. Pinacocytes

  5. Choanocytes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Pinacocytes are flattened cells containing many granules; capable of contracting. They are involved in the maintenance of the size and structure of sponge. They can expand and contract and slightly alter the size of the sponge. It can also produce collagen.

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