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Chapter 6 Blog: An Introduction to Energy, Enzymes, and Metabolism (Lauren)

Page history last edited by Lauren Banjo! 13 years, 9 months ago

In the first section of this page, you will write a daily summary of that day's class.  For example in  your chapter 2 blog, your first entry should be titled 9/3/10.  You should then write a one or two paragraph summary of that day's lecture, outlining the major points.  In the second section, you are required to add two items (link to a website, video, animation, student-created slide show, student-created PowerPoint presentation) and one journal article pertaining to a topic in this chapter.  A one-paragraph summary must accompany each item describing the main idea and how it applies to the lecture topic.  Please see the PBWorks help guide for assistance embedding video and other items directly in the page.  I will also produce a how-to video on using tables to wrap text around items and other useful tips.  Please see the syllabus for organization and grading details.


A.  Daily Blog


We learned about energy today. I wish I had more energy! Oh well. Heat is the total kinetic energy due to molecular motion. Temperature is the average kinetic energy due to molecular motion. The more potential energy something has, the more unstable it is. Transfer or transformation of energy from one form to another increases entropy or degree of disorder of a system. However, organisms contradict that. Dr. Weber said we should not be. That's scary. :( Energy helps to create highly ordered proteins. Heat is unusable energy. Exergonic reactions release energy and endergonic reactions receive energy. Exergonic is spontaneous and endergonic is non spontaneous. 



Activation energy is the energy required to start the chemical reaction. Heat is required for the activation energy. Enzymes help lower the activation energy required. ENZYMES DO NOT SUPPLY ENERGY!!! THEY CAN'T TURN REACTIONS FROM SPONTANEOUS TO NON SPONTANEOUS. THEY JUST LOWER THE INITIAL ENERGY BARRIER. Saturation of an enzyme is when nearly all active sites are binded to, and the graph plateaus. Km is the amount of substrate required to bind half of the enzyme, and it's inversely related to affinity between enzyme and substrate. 


B.  Useful Materials




Comments (4)

Derek Weber said

at 3:09 am on Oct 26, 2010

I like the all caps. No useful materials though. :0(

Lauren Banjo! said

at 3:20 am on Oct 27, 2010

that's because nothing is more useful than the information you give us!!!

Lauren Banjo! said

at 3:20 am on Oct 27, 2010

I should at least get a few points for such a smart comment like that.

Derek Weber said

at 1:24 am on Nov 23, 2010

Good attempt....but no.

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