What is the difference between a dinoflagellate and a diatom?

Answer 1

Dinoflagellates and diatoms are both types of microalgae but differ in several key aspects. Dinoflagellates are characterized by their two flagella, which allow for unique swimming patterns, and often have protective cellulose plates. In contrast, diatoms possess a distinctive silica-based cell wall known as a frustule, which has intricate patterns and is critical for their buoyancy. Additionally, dinoflagellates can exhibit bioluminescence and are often involved in harmful algal blooms, while diatoms are primarily important for their role in primary production in aquatic ecosystems.