Is a cell a single component?

Answer 1

Yes, cells are single components in the manner that when they are collectivelly brought together they form the tissues, when the tissues are brought together they form the organs. We must however remember that, although cells are single components of tissues and thus organs, they too contain there own components, the organelles. The organelles of cells act as the systems and "organs" of an individual cell. In the absence of cellular organelles, a cell would not survive.