Question

What is cell? Scientific definition.

Answer 1

An autonomous self-replicating unit that may exist as functional independent unit of life (as in the case of unicellular organism), or as sub-unit in a multicellular organism (such as in plants and animals) that is specialized into carrying out particular functions towards the cause of the organism as a whole.

or

A membrane bound structure containing biomolecules, such as nucleic acids, proteins, and polysaccharides.