👉 Macrobiosis is the process by which cells, especially bacteria and archaea, take in nutrients from the environment. This involves utilizing sunlight, carbon dioxide, and water to convert these resources into energy and biomass (i.e., organic matter) through a series of metabolic reactions known as photosynthesis. In macrobiosis, cells obtain their energy from light, which is absorbed by chlorophyll, a pigment found in plant leaves. Chlorophyll absorbs light, converting it into chemical energy that can