Question

Match these movements with the type of cells/limbs in human body.

• A. Respiratory tract
• B. Sperm
• C. Macrophages
• D. Limbs

Answer 1

The most important type of movement that occurs in the body is that of the muscle cells in skeletal, cardiac, and smooth muscle, which constitute almost 50 per cent of the entire body mass. Other types of movement like amoeboid locomotion, flagellar and ciliary movement—occur in other cells.
Amoeboid movement involves streaming of protoplasm to form pseudopodia as seen in amoeba. Macrophages and other leukocytes of the human body utilise this type of movement to get around the body.
Ciliary movement is observed in our respiratory tract, where cilia work like a windshield wiper, to move mucus along the tract.
Muscular movement is the movement of our limbs, our jaw, eyes, tongue, etc.
Flagellar movement is the movement by flagella, which is a hair-like protrusion from the cell, which acts as a tail and helps organisms swim. Sperms use this type of movement to swim in female genital tract, to reach the egg and fertilize it.