Life, at its simplest?

Life, at its simplest?

Is there anything other than these three requirements needed to call something living?

1. A Reproducing Matrix, able to store Genetic Information

2. A Metabolic Process, in order to gather and use Energy from its Surroundings

3. A Form of Containment, separating the life-form from the Outside World

Likewise, are these the three basic requirements for all forms of life?

1. Energy, in the form of Heat or Light

2. A Liquid Solvent, in order to facilitate Chemical Reactions

3. A Chain-Forming Element, in order to create the Complex Molecules that makeup the life-form.

Anything you would add or change? I'd like to maintain the reducibility of 3 please.