Question

Which among the following is incorrect about transport canal system in Porifera?

(a) Water enters the cavity through minute pores called as ostia

(b) Flagellated cells create water currents inside spongocoel

(c) Collar cells help in the distribution and filtering of food materials

(d) Water leaves the spongocoel through Osculum

I had been asked this question by my college director while I was bunking the class.

I'm obligated to ask this question of Classification of Animal Kingdom into Different Phylum-1 topic in chapter Animal Kingdom of Biology – Class 11

Answer 1

Right answer is (c) Collar cells help in the distribution and filtering of food materials

The explanation: Water enters the central cavity through minute pores called as ostia and leaves the cavity through Osculum. Flagellated cells create water currents inside spongocoel. Collar cells filter the food materials and amoeboid cells distribute food materials.