Answer:
To maintain homeostasis, unicellular organisms grow, respond to the environment, transform energy, and reproduce. The cells of multicellular organisms become specialized for particular tasks and communicate with one another to maintain homeostasis. ... Active transport requires energy.
Respiration is the transformation of glucose to ATP, which is energy that the body can use.
Respiration consists of several steps: glycolysis, TCA/Krebs/Citric acid sycle and at last the oxidative phosphorylation.
The molecules needed for this to happen is water, oxygen (O2), NADH, ATP and glucose.
All bacteria are prokaryotic!