Question

Sperms produce an enzymatic substance or lysis for dissolving egg coverings. It is called

• A. Hyaluronic acid
• B. Hyaluronidase
• C. Androgamone
• D. Diastase

Answer 1

Answer: (B)

Hyaluronidase

After capacitation, sperm cells propel themselves towards the zona pellucida, by making a receptive fertilization cone through the cytoplasm of the egg. The enzyme hyaluronidase produced by the plasma membrane is involved in the breaking down or lysis of zona pellucida, whereas glutathione maintains the metabolic stability of sperm cells. Zona pellucida is the outermost layer covering the ovum (egg covering).

So, the correct answer is option B.