LIFE SCIENCE

Detailed explanation-1: -The flagella closely resemble the cilium in structure. The core is a bundle of nine pairs of microtubules surrounding two central pairs of microtubules (the so-called nine-plus-two arrangement); each microtubule is composed of the protein tubulin. The coordinated sliding of these microtubules confers movement.

Detailed explanation-2: -The flagella, or flagellum for singular, are a whiplike extension used by different cells, as well as unicellular organisms, for movement. These organelles are found in the three different domains of life: Archaea. Bacteria.

Detailed explanation-3: -Bacterial flagella are a coiled, thread-like structure, sharp bent, consisting of a rotary motor at its base and are composed of the protein flagellin.

Detailed explanation-4: -The proteins in the flagella are organised in a right-handed helix, which causes the flagella to rotate clockwise. As the cell rotates clockwise, the speed of the archaeal flagella increases. The hooks of archaeal flagella vary in length from species to species, unlike those in bacteria.