Acrosome of sperm is formed by :

Endoplasmic Reticulum
Plasma Membrane
Nucleus
Golgi Apparatus

The correct answer is (d). The acrosome is a cap-like structure that covers the head of a sperm cell. It contains enzymes that help the sperm cell to penetrate the egg cell’s membrane. The acrosome is formed by the Golgi apparatus, which is an organelle in the cell that is responsible for packaging and secreting proteins.

The endoplasmic reticulum is a network of tubules and sacs that is found in the cytoplasm of cells. It is involved in the synthesis of proteins, lipids, and carbohydrates. The plasma membrane is the outer membrane of a cell. It is composed of a lipid bilayer and proteins. The nucleus is the control center of the cell. It contains the cell’s DNA.