Question

Why are viruses called obligate intracellular parasites?

Answer 1

ANSWER:-

Viruses are called obligate intracellular parasites cause they do not have an independent existence. They are devoid of well framed cell machinery. They cannot perform the vital cell functions themselves and hence depend on host cell machinery to carry out their functions such as protein manufacturing,reproduction etc.

Answer 2

They are called so because they do not have an independent existence.They are devoid of well framed cell machinery.They cannot perform the vital cell functions themselves and hencedepending host cell machinery to carry out their functions such as protein manufacturing,reproduction etc