E1_TheOriginsOfLife(3).pptx - Unit 1 Evolution Lucy...

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Lucy Australopithecus afarensis Unit 1: Evolution 1
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Hierarchy of Life
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How did life arise? 3
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Ingredients for the Origin of Life 1. The abiotic synthesis of small organic molecules, such as amino acids and nitrogenous bases 2. The joining of these small molecules into polymers, such as proteins and nucleic acids 3. The packaging of these molecules into “protocells,” droplets with membranes that maintained an internal chemistry different from that of their surroundings. 4. The origin of self-replicating molecules that eventually made inheritance possible 4
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Formation of the elements in stars PBS Video NOVA. Origins: back to the beginning. Chapter 5 (may have to wait through commercials) Y outube cop y Local copy 5
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Question on Video Build up of the element iron causes a star to die. What happens when a star dies? a. This is a dead end for the star which will be overcome by the birth of new stars with greater energy. b. The dead star explodes and the energy generated overcomes barriers imposed by the concentration of iron allowing other higher elements to be formed. c. Dead stars by chance impact with other stars allowing them to regenerate and energize. d. The dead star is not actually dead as it has a “broth” whose chemicals can be utilized to make new compounds.
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Question on Video Data from the Hubble Telescope show remarkable images of the Eagle Nebula. Scientific data based upon the study of the Eagle Nebula are consistent with which of the following statements? a. Stars developing in the Eagle Nebula will overcome our solar system within a billion years. b. The Eagle Nebula is a beautiful rendition of fireworks and star development that has no impact on our understanding of the development of our own solar system. c. Because the elemental composition in the areas within the Eagle Nebula where stars are forming is similar to that of our sun, it is possible that conditions for life could be repeated in these new solar systems. d. The Eagle Nebula is a representation of an older group of solar systems very far away from our solar system and what we see in the telescopic images is the death of an older set of stars where the light images are just reaching us.
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Were building blocks of life present?
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