Question

In sponges food is ingested by:
A. Seleroblasts
B. Porocytes
C. Choanocytes
D. Pinacocytes

Answer 1

Answer:

In sponges food is ingested by Porocytes.

Explanation:

Sponges belong to phylum Porifera, means pore bearers.

They have pores on throughout body by which ingestion of food particles takes place.

Answer 2

Answer:

Food is ingested by choanocytes in the sponges.

Explanation:

• The choanocyte is the core of the sponge body's suite of cells, making them one of the earliest and most ancient groups of animals to have formed on Earth.
• Choanocytes are specialized cells with a single flagellum encircled by a collar of microvilli that resembles a net. The choanoderm, where choanocytes combine to develop, serves two main purposes.
• Water must first be made to flow, and then food must be caught as it passes by these cells.
• The synchronized beating of flagella starts the flow of water. Depending on the species, water enters the sponge through the ostia and travels through a canal system of varying complexity until it reaches the choanocytes.
• Bacteria are caught in the microvillar net at the choanocyte and transferred to the archaeocytes in the mesohyl. Through the osculum, water leaves the sponge.

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