Question

What are the characters of dinoflagellates
1. Planktonic golden yellow algae with soapbox like structure
2. Marine red biflagellate protists
3. Appear yellow, green, brown, blue and red in colour
4. Biflagellate organisms with pellicle
5. Saprophytic or parasitic unicellular forms

• A. 1, 2 and 3 only
• B. 2, 4 and 5 only
• C. 2 and 3 only
• D. 2 and 5 only
• E. 3, 4 and 5 only

Answer 1

The correct option is C 2 and 3 only

• These organisms are mostly marine and photosynthetic.
• They appear yellow, green, brown, blue, or red depending on the main pigments present in their cells.
• Most of them have two flagella; one lies longitudinally and the other transversely in a furrow between the wall plates. Hence, Marine red biflagellate protists and Appear yellow, green, brown, blue, and red in color are the characters of dinoflagellates.
• So, the correct answer is "2 and 3 only'.