what are two kind of movement

Asked by priyasubi060 | 24th Jun, 2020, 12:49: PM

Expert Answer:

Different types of movements exhibited by the cells of the human body:
1. Amoeboid movements:

  • These movements are produced by temporary formation of pseudopodia.
  • In protozoans, such as Amoeba, pseudopodia help in capturing food and locomotion.
  • Leucocytes and macrophages move in the tissues with the help of pseudopodia.
  • Cytoskeletal elements such as microfilaments are also involved in amoeboid movements.

2. Ciliary movements:

  • These movements occur in the internal tubular organs which are lined with the ciliated epithelium.
  • Cilia lining the trachea propel dust particles out of the body.
  • Cilia lining the fallopian tubes and vas efferentia help in the movements of ova and sperms in the desired direction.
  • Cilia also help in swimming in ciliated protozoans and ciliated larva such as planula larva of coelenterates and the trochophore larva in annelids.

3. Muscular movements:

  • These movements occur in muscle cells which help the organisms in movement and locomotion.
  • Muscle cells contract and relax to bring about the movement.
  • Movements of limbs, tongue and jaws are examples of muscular movements.

(Note: According to the NCERT textbook, the above-mentioned are movements exhibited by cells. Flagellar movement and cytoplasmic streaming are also movements exhibited by cells).

Answered by Ramandeep | 29th Jun, 2020, 08:02: PM