Lec21 - MCB 102 Professor Markus Pauly Lecture 21 ASUC...

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

View Full Document Right Arrow Icon
MCB 102 Professor Markus Pauly 03/09/11 Lecture 21 ASUC Lecture Notes Online is the only authorized note-taking service at UC Berkeley. Do not share, copy, or illegally distribute (electronically or otherwise) these notes. Our student-run program depends on your individual subscription for its continued existence. These notes are copyrighted by the University of California and are for your personal use only. D O N O T C O P Y Sharing or copying these notes is illegal and could end note taking for this course. ANNOUNCEMENTS There will be NO office hours this Friday. Thursday office hours will be from 2-3pm. I will make up for this by holding extra office hours during the week of the midterm. LECTURE The most dominant source of nitrogen (N) is atmospheric nitrogen (N 2 ). Nitrogen-fixing bacteria convert N 2 to ammonia, which can be converted to amino acids and other reduced nitrogen-carbon compounds. These compounds are then taken up and used by animals. Ammonia can also be oxidized back to atmospheric nitrogen by nitrifying bacteria. The biological N 2 process uses ATP to fix N 2 to ammonia. This reaction is catalyzed by nitrogenase found in Rhizobia bacteria living on legume roots. The industrial fixation process is called the Haber- Bosch process, which uses high temperature and pressure to produce ammonia from N 2 . Vertebrate cannot make sufficient amounts of certain amino acids, so it is essential to eat these amino acids regularly since they cannot be stored in the body. Excessive amino acids are degraded to make fuel or energy.
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