Unseen Life on Earth

01 - The Microbial Universe

The world of microorganisms is a dynamic one, and all other life forms depend on microbial metabolic activity. Recent genetic research has uncovered only about one percent of the microbes that remain to be discovered.

Peer into the microbial world with this comprehensive microbiology series. This series helps students understand microbial functions and how microorganisms affect everything from medicine to environmental issues to global politics. Dynamic visuals — such as animations and scanning electron micrographs — and case studies including DNA testing and dramatic battles against dangerous viruses illustrate the work and effects of microorganisms. Students gain an enhanced appreciation of the field of microbiology as they meet scientists carrying on their investigations in the lab and in the field. Unseen Life on Earth is designed for general microbiology courses for majors and allied health students. It is also useful as a resource for life science courses in college and high school.

Produced by Oregon Public Broadcasting in association with Baker & Simon Associates and the American Society for Microbiology. 1999.




02 - The Unity of Living Systems
All cellular organisms — prokaryotic and eukaryotic — share basic chemical similarities. Out of these similarities, however, emerge diverse patterns of cell assembly. Students encounter the tools to understand various cell types and their relationship to noncell entities such as viruses.

Peer into the microbial world with this comprehensive microbiology series. This series helps students understand microbial functions and how microorganisms affect everything from medicine to environmental issues to global politics. Dynamic visuals — such as animations and scanning electron micrographs — and case studies including DNA testing and dramatic battles against dangerous viruses illustrate the work and effects of microorganisms. Students gain an enhanced appreciation of the field of microbiology as they meet scientists carrying on their investigations in the lab and in the field. Unseen Life on Earth is designed for general microbiology courses for majors and allied health students. It is also useful as a resource for life science courses in college and high school.





POINT NUMBER 3 - COULD NOT FIND



04: Reading the Code of Life

DNA is central to cell activity, replicating with great fidelity and carrying the information for all proteins. Organisms also regulate the products made from genes in an effort to conserve energy and adapt to new environments.

Peer into the microbial world with this comprehensive microbiology series. This series helps students understand microbial functions and how microorganisms affect everything from medicine to environmental issues to global politics. Dynamic visuals — such as animations and scanning electron micrographs — and case studies including DNA testing and dramatic battles against dangerous viruses illustrate the work and effects of microorganisms. Students gain an enhanced appreciation of the field of microbiology as they meet scientists carrying on their investigations in the lab and in the field. Unseen Life on Earth is designed for general microbiology courses for majors and allied health students. It is also useful as a resource for life science courses in college and high school.




05: Genetic Transfer

Peer into the microbial world with this comprehensive microbiology series. This series helps students understand microbial functions and how microorganisms affect everything from medicine to environmental issues to global politics. Dynamic visuals — such as animations and scanning electron micrographs — and case studies including DNA testing and dramatic battles against dangerous viruses illustrate the work and effects of microorganisms. Students gain an enhanced appreciation of the field of microbiology as they meet scientists carrying on their investigations in the lab and in the field. Unseen Life on Earth is designed for general microbiology courses for majors and allied health students. It is also useful as a resource for life science courses in college and high school.




06: Microbial Evolution

Recent genetic techniques have led to new theories of evolution and the relationships between organisms. Students examine this "evolution revolution," using molecular sequences to trace the phylogenetic relationships of microbial life. Both the big picture of microbial evolution and the methods necessary for determining molecular phylogenies are examined.

Peer into the microbial world with this comprehensive microbiology series. This series helps students understand microbial functions and how microorganisms affect everything from medicine to environmental issues to global politics. Dynamic visuals — such as animations and scanning electron micrographs — and case studies including DNA testing and dramatic battles against dangerous viruses illustrate the work and effects of microorganisms. Students gain an enhanced appreciation of the field of microbiology as they meet scientists carrying on their investigations in the lab and in the field. Unseen Life on Earth is designed for general microbiology courses for majors and allied health students. It is also useful as a resource for life science courses in college and high school.





07: Microbial Diversity

What is the relationship between the bacteria, archaea, and eukaryote branches of the tree of life, with their startling variety of organisms? Students see comparisons of organisms in their natural habitats and examine ways of studying these organisms in those habitats and in the laboratory.

Peer into the microbial world with this comprehensive microbiology series. This series helps students understand microbial functions and how microorganisms affect everything from medicine to environmental issues to global politics. Dynamic visuals — such as animations and scanning electron micrographs — and case studies including DNA testing and dramatic battles against dangerous viruses illustrate the work and effects of microorganisms. Students gain an enhanced appreciation of the field of microbiology as they meet scientists carrying on their investigations in the lab and in the field. Unseen Life on Earth is designed for general microbiology courses for majors and allied health students. It is also useful as a resource for life science courses in college and high school.





08: Microbial Ecology

Humans and all life forms depend on microorganisms as the essential processors of oxygen, mineral nutrients for plant growth, and waste materials. Here we investigate some of the important environments dominated by microbes and how their presence is essential for human life.

Peer into the microbial world with this comprehensive microbiology series. This series helps students understand microbial functions and how microorganisms affect everything from medicine to environmental issues to global politics. Dynamic visuals — such as animations and scanning electron micrographs — and case studies including DNA testing and dramatic battles against dangerous viruses illustrate the work and effects of microorganisms. Students gain an enhanced appreciation of the field of microbiology as they meet scientists carrying on their investigations in the lab and in the field. Unseen Life on Earth is designed for general microbiology courses for majors and allied health students. It is also useful as a resource for life science courses in college and high school.