NEET BIOLOGY

Detailed explanation-1: -This structure is called an axoneme. The nine outer pairs are made up of motor proteins called dynein. These are large and flexible that allows the cilia to move. Cilia are attached to the cell at the basal body that is made up of microtubules arranged in nine triplets.

Detailed explanation-2: -Flagella are longer, whiplike projections that propel cells. Both cilia and flagella are composed of microtubules. They move cells through their watery environments. Cilia also move substances along the surface of the cell.

Detailed explanation-3: -The little whip-like structures that help prokaryotic cells move are called flagella. The flagella spin around and this helps to move the prokaryotes, like bacteria, along.

Detailed explanation-4: -The microtubules, which together produce cylindrical structures such as flagella and cilia, are arranged in a 9+2 pattern. The 9+2 configuration is made by 9 fused pairings of microtubules on the outside forming a cylinder and two unfused microtubules in the center of these 9 pairs.

Detailed explanation-5: -The motile cilium is a complex organelle that is typically comprised of a 9+2 microtubule skeleton; nine doublet microtubules surrounding a pair of central singlet microtubules.