Question

what is the role of food for living organisms

Answer 1

Well, food provides us the nutrient and energy that we need in our body. We need energy to do what we need to: moving, breathing, growing, and more. Nutrients are needed in our body in order for it to function properly.

Answer 2

depends on what foods you are talking about specifically. Proteins' functions are movement, signaling, transport, increasing chemical reactions, defense. Steroids like cholesterol help make other steroids. Phospholipids are a major component of cell membranes