In eukaryotes, their structure involves 9 radially symmetric doublet pairs with 2 central and unpaired microtubules, called an axoneme.
The swarm cell stage of slime molds is characterized by the presence of these. Chytridiomycota are the only fungi that possess these structures, and they are present in two distinct forms in the heterokonts, one of which has decorative mastigonemes. Lugol's solution stains these structures in bacteria, while a structure that resembles them aids in food (*) acquisition for the haptophytes. In bacteria they are formed by a type 3 secretory system, while in algae they are anchored with 4 microtubules. In eukaryotes, their structure involves 9 radially symmetric doublet pairs with 2 central and unpaired microtubules, called an axoneme. For 10 points, identify these whip-like structures present on Chlamydomonas and Euglena that aid in locomotion.
The swarm cell stage of slime molds is characterized by the presence of these.
{flagella} [or {flagellum}]