Question

Which is wrong about diatoms

• A. Microscopic
• B. Planktonic
• C. Overlapping shells
• D. Spores with two flagella
• E. Silica cell wall

Answer 1

Answer: (D)

Spores with two flagella

• They are found in freshwater as well as in marine environments. They are microscopic and float passively in water currents (plankton).
• Most of them are photosynthetic. 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, Spores with two flagella wrong about diatoms.
• So, the correct answer is"' Spores with two flagella'.