Q. In which of the following groups, the cell wall has stiff cellulose plate on the outer surface?
A) Diatoms
B) Red algae
C) Dinoflagellates
D) Slime moulds
Explanation
In dinoflagellates, cells are generally covered by a rigid coat, the theca or lorica of articulated and sculptured plates formed of cellulose. Because of the presence of sculptured plates, these protists are of ten types known as armoured dinoflagellates
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.