What is responsible for amoeboid movement in cells?

Movement is one of the significant features of living beings.Streaming of protoplasm in the unicellular organisms like Amoeba is a simple form of movement.Movement of cilia, flagella and tentacles are shown by many organisms. Animals perform locomotion for the search of food, shelter, mate, suitable breeding grounds, favourable climatic conditions or to escape from enemies/predators. Some specialised cells in our body like macrophages and leucocytes in blood exhibit amoeboid movement.Some specialised cells in our body like macrophages and leucocytes in blood exhibit amoeboid movement. Amoeboid movement in cells is caused by pseudopodia formed by the streaming of protoplasm and the involvement of cytoskeletal elements like microfilaments.