Concept:The centriole is the organelle that organizes microtubules to form cilia and flagella.
Explanation:Cilia and flagella are hair-like mobile structures on the surface of some cells.
They are composed of microtubules, which are protein filaments.
Centrioles are barrel-shaped organelles that organize these microtubules.
They act as microtubule-organizing centers and form the basal bodies needed to build cilia and flagella.
In animal cells, centrioles are typically located near the nucleus.
Without centrioles, a cell cannot construct these motile structures.
Ribosomes only synthesize proteins, while lysosomes digest waste materials.
Plastids are mainly involved in food storage and photosynthesis in plant cells.
Therefore, the centriole is the organelle responsible for forming cilia and flagella.
Answer:C. centriole