BIO153H5 Lecture Notes - Lecture 5: Archaea, Cellular Respiration, Eukaryote
Document Summary
The most abundant and the earliest life forms. Key concepts: bacteria and archaea have a profound impact on humans and global ecosystems. A few bacteria cause infectious diseases, some bacterial and archaealspecies can clean up pollution, photosynthetic bacteria created the oxygen atmosphere, and bacteria and. Archaea cycle nutrients through every environment: bacteria and archaea have been evolving for billions of years and are extremely sophisticated organisms. Although they are small and relatively simple morphologically, they live in virtually every habitat known and use remarkably diverse types of compounds in cellular respiration and fermentation. Bactria is a diverse group but not the only prokaryotic unicellular group. Archea looks like bacteria but they do have some differences. They had some common ground at some point they diverged from one things, through evolution they diverged in different paths. Eucharea bacteria and archea are the three- taxon statement, two of these will be closely related.
