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Q.
Human sperm cells move by means of a
Chhattisgarh PMTChhattisgarh PMT 2010
Solution:
A sperm cell uses its flagellum, commonly referred to as a tail, to propel itself toward the female oocyte, or egg. The flagellum is the longest part of the $ 25\,\mu m $ of the cell and surprisingly requires only $ 12\times 1CT^{18}W $ of power to propel it. Motile sperm cells typically move via flagella and require water in order to swim towards the egg for fertilization. These cells cannot swim backwards due to the nature of their propulsion. The uniflagellated sperm cells (with one flagellum) produced in most animals are referred to as spermatozoa and are known to vary in size.