Question

Which one of the following is a characteristic feature of chrysophytes?

• A. They are parasitic forms which cause diseases in animals.
• B. They have a protein rich layer called pellicle.
• C. They have indestructible wall layer deposited with silica.
• D. They are commonly called dinoflagellates.

Answer 1

Answer: (C)

Chrysophytes include diatoms and golden algae. In diatoms the cell walls form two thin overlapping shell which fit together as in soap box. The walls are embedded with silica and thus the walls are indestructible.