Dodoma is the capital of Tanzania, although Dar es Salaam is the country's largest city and its commercial capital.
Energy is defined as the ability to do work. Cellular respiration provides energy for living organisms. So, cellular respiration is important because it provides the energy for living organisms to perform all of the other necessary functions to maintain life.
As it turns out, oxygen is the essential ingredient for making energy in a process called cellular respiration. Cellular respiration is the process cells use to make energy. Our body cells need oxygen to do this process, although other organisms, like yeast or bacteria, don't always need it. They have other ways of making energy.