1st_lecture[1]

1st_lecture[1] - MCB 102 Professor Fyodor Urnov Lecture 1...

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MCB 102 Professor Fyodor Urnov 06/21/10 Lecture 1 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 Welcome to MCB 102. I would first like to make an announcement that you should make sure you're on bSpace. Many of the materials for the class will be posted there including articles and the daily slideshows. Slides will not be posted on the web prior to lecture, though. Instead, I wish for you to bring a pen and paper to class, while the slides will be posted on bSpace later in the afternoon. Also, be aware that Berkeley time will be suspended for the summer. Since we have so little time and so much material to cover, classes will begin at 8:30 instead of at 8:40. In addition, discussion sections will start next week. All sections are mandatory, and there will be section participation points as part of your final grade. LECTURE At first, I wanted to start off the class by talking about the real life Rainman. If any of you don't know about the movie, the character Rainman can remember any moment that happened in his life with perfect clarity. He was based on a real-life person, Laurence Kim Peek, who also had a photographic memory. But I decided against this because we don't really understand the biochemical basis of his abilities. Sugars as a Source of Energy Instead, I wanted to talk about four of the fastest people in the world because the biochemical basis of their feats is understood a bit better. Some of them are short distance sprinters while others do longer distances. Nevertheless, all of their abilities come down to being able to efficiently metabolize the polysaccharide starch, specifically amylose. If you ate breakfast this morning, you probably had some amylose, as it can be found in bagels and toast. Other significant polysaccharides are lactose, which can be found in coffee, and sucrose, which can be found in nearly all of our food. Polysaccharides, like amylose and lactose, however, are completely useless to humans in the form that they are found in nature. Instead, we must break down the sugars into their digestible monosaccharide form. For example, sucrose is metabolized into D-glucose (an aldohexose) and a D-fructose (a ketohexose). I would like to emphasize though that they are never found in a completely reduced linear form in the human body and are instead in their ring shape confirmation. On that note, I'd like to remind everyone that
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This note was uploaded on 10/31/2010 for the course MCB 67290 taught by Professor Urnov during the Summer '10 term at Berkeley.

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1st_lecture[1] - MCB 102 Professor Fyodor Urnov Lecture 1...

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