Prokaryote

Changes in the Atmosphere Causing Multicellularity
Changes in the Atmosphere Causing Multicellularity
Changes in the Atmosphere Causing Multicellularity Changes in the Atmosphere Causing Multicellularity About 2.5 billion years ago, oxygen began slowly to accumulate in the atmosphere, as a result of the photosynthetic activity of the cyanobacteria. Those prokaryotes that were able to use oxygen in ATP production gained a strong advantage, and so they began to prosper and increase. Some of these cells may have evolved into modern forms of aerobic bacteria. Other cells may have become symbionts w
Mitochondria
Mitochondria
Mitochondria Mitochondria Mitochondria are responsible for energy production. They are also the responsible location for which respiration takes place. Mitochondria contain enzymes that help convert food material into adenosine triphosphate (ATP), which can be used directly by the cell as an energy source. Mitochondria tend to be concentrated near cellular structures that require large inputs of energy, such as the flagellum. The role of the mitochondria is very important in respiration. In the
Life
Life
Life Word Count: 887 Until recently, scientists believed that the sole source of energy responsible for life on earth was the sun. In 1977, a group of scientists researching the theory of plate tectonics, traveled to the floor of the equatorial Pacific Ocean and discovered something that could possibly explain how life began on this planet. From the Galapagos Rift\'s thermal springs, scientists discovered densely populated communities of several species never before observed. Since that time th