In a eukaryotic cell,which of the following organelles does not possess a membrane?

Study the following statements on cilium or flagellum and answer the question.
$(i)$ Cilium / Flagellum contains an outer ring of nine doublet microtubules surrounding two singlet microtubules.
$(ii)$ Cilia are smaller which work like oars,causing the movement of either the cells or surrounding fluid.
$(iii)$ Flagella are comparatively longer and responsible for cell movement.
$(iv)$ Cilium and flagellum are covered with plasma membrane. Which of the above statements are correct?

$A$: Centriole does not form any compartment in a cell.
$R$: Centriole is a non-membranous cell organelle.

Each peripheral fibril on the centriole is made up of

Cilia and flagella are responsible for which of the following processes?

The arrangement of $..............$ is like a cartwheel.