Question

Whats the difference between cell motility and intracellular motility?

Answer 1

Ans.Cell motility  :- It is the spontaneous movement of a cell from one location to another by consumption of energy. It occurs by several types of motion, including swimming, crawling, gliding and swarming.

The formation of actin filaments push the leading edge forward and is the main motile force for advancing the Cell's front edge. In addition, the cytoskeletal elements are able to interact extensively and intimately with a Cell's plasma membrane.

  Intracellular motility :- It is the movement of structures ( like organelles) within the cell. It is distinguished from transcellular and paracellular movement, which pertain to transport across a cellular membrane.

Eukaryotic cells transport packets of components to particular intracellular locations by attaching them to molecular motors that haul them along microtubules and actin filaments.

Since intracellular transport heavily relies on microtubules for movement, the components of cytoskeleton play a vital role in trafficking vesicles between organelles and plasma membrane by providing mechanical support .

Through this pathway, it is possible to facilitate the movement of essential molecules such as membrane bound vesicles and organelles, mRNA, and chromosomes.