| Description |
1 online resource (streaming video file) (15 min. 6 sec.) ; 88656059 bytes |
| Summary |
Looks at the four main classes of biomolecules.. Introducing nucleic acids, lipids, proteins and carbohydrates.. Starts with Earth 4 billion years ago and asks how could the chemicals of life have arisen?. A simulation of the famous Stanley Miller experiment shown.. The first biomolecule was probably a self assembling polymer - a nucleic acid.. DNA reproduction.. Lipids and their role as cell membranes are discussed.. Proteins - demonstration of an enzyme reaction.. Carbohydrates are the main basis of cellular fuel.Atoms Alive is a series about DNA and genetics, which has been produced to support the biology curriculum for upper secondary students.It seems incredible that all life on earth comes from the information held in a single kind of molecule. DNA is an immense molecule that can direct the fantastically complex chemistry of the cell, reproduce itself, and even self-modify to take advantage of new conditions. You could say that all the different forms of life, from earliest to modern, are simply the different disguises of DNA as it has tried out many containers for itself. How is it conceivable that a molecule made of only four types of building blocks can create such sophistication? |
| Event |
Broadcast 2014-10-27 at 10:30:00 |
| Notes |
Classification: G |
| Subject |
Biomolecules -- Analysis.
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Carbohydrates.
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Molecules -- Experiments.
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| Form |
Streaming video
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| Author |
Kelly, Karina, cast
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McNamara, Ken, host
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Mead, Leslie H, host
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Schaper, Paul, host
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Third, Katie, host
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