Comparative genomics has helped map out these paths to multicellularity and diagram evolutionary divergence ... largely mediated by enzymes, defines cell metabolism. One approach to the study ...

This diagram shows the metabolism of glucose in plants - how glucose can be made from starch, lipids and amino acids, and is used in the process of respiration. All cells require glucose for ...

The sun is the ultimate source of energy for virtually all organisms. Photosynthetic cells are able to use solar energy to synthesize energy-rich food molecules and to produce oxygen.