Question

Which is characteristic feature of chrysophytes

• A. Parasitic forms causing diseases in animals
• B. Have protein rich layer called pellicle
• C. Commonly called dinoflagellates
• D. Have indestructible wall layer deposited with silica
• E. Saprophytic nutrition

Answer 1

The correct option is D Have indestructible wall layer deposited with silica

• In diatoms, the cell walls form two thin overlapping shells, which fit together as in a soapbox.
• The walls are embedded with silica and thus the walls are indestructible. Hence, Having an indestructible wall layer deposited with silica is a characteristic feature of chrysophytes.
• So, the correct answer is "Have indestructible wall layer deposited with silica'.