Outline 03 2008 From so simple a beginning

Outline 03 2008 From so simple a beginning - Lecture 03...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Lecture 03: FROM SO SIMPLE A BEGINNING: CHEMISTRY AND THE ORIGIN OF LIFE Summary. We may only speculate about the origin of life on earth. From the geological record we know the approximate time that organisms producing oxygen first appeared. The later fossil record provides a minimum age for organisms composed of cells. The big question concerns the likelihood that life arose spontaneously. We would like to know what the first living things were actually like. In this lecture, we review the evidence that suggests that life originated spontaneously from a pre-biotic “soup” of simple organic chemicals in seawater. We also consider a relatively new idea, that of an RNA world, in which RNA served both as hereditary molecule and catalyst for biochemical reactions. Reading Assignment Campbell, N. A. and Reece, J. B. (2008), Biology. Read Chapter 4 (pp. 58-67) and Chapter 25 (pp. 507-512). To Review : In preparation for the next several lectures, please also review Campbell/Reece Chapters 2, and 3 on the topic of simple chemistry.
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern