Question

Aperture between incurrent and flagellate canals of sponges is called.

• A. Prosopyle
• B. Spongocoel
• C. Porocyte
• D. Collencyte

Answer 1

The correct option is A Prosopyle

A. Prosopyle is the opening of in current canals into radial chambers i.e. flagellate canals.

B. Spongocoel is the central cavity in the body of sponges.

C. Between the pinacocytes in the pinacoderm, a number of large conical, on open tube-like peculiar cells called porocytes are present. The tunnel in each porocyte is called an ostium through which sea water enters into the spongocoel.

D. Collencytes are the amoebocytes with branched pseudopodia. These can be compared with the connective tissue cells and are often united into a syncytial network. These cells produce collagen-like protein.

So, the correct answer is 'Prosopyle'.