What is a root hair? What structure does it have?

Almost all higher plants have a very unusual and different form of food from other living organisms. This is soil extraction of food. And it represents the absorption of water and minerals dissolved in it. This happens with the help of small and thin root hairs. These are long protrusions of the superficial root cell. This elongated cell has in general the same structure as any other in plants. Outside, it is covered with a thinned cell membrane, under which there is a colorless cytoplasm, a small nucleus, plastids and a vacuole with cell juice.